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ECMA-331 — Cases for 120 mm and 80 mm DVD-RAM disks (June 2004)

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ECMA-331 2nd Edition / June 2004

Cases for 120 mm and 80 mm DVD-RAM Disks

Standard ECMA-331 2nd Edition / June 2004

Cases for 120 mm and 80 mm DVD-RAM Disks

Ecma International PC

ECMA-331.doc

Rue du Rhône 114

07/07/2004 10:05:00

CH-1204 Geneva

T/F: +41 22 849 6000/01

www.ecma-international.org

Brief history Ecma Technical Committee TC31 was established in 1984 for the standardization of Optical Disks and Optical Disk Cartridges (ODC). Since its establishment, the Committee has made major contributions to ISO/IEC toward the development of International Standards for 80 mm, 90 mm, 120 mm, 130 mm, 300 mm, and 356 mm media. Numerous standards have been developed by TC31 and published by Ecma, almost all of which have also been adopted by ISO/IEC under the fast-track procedure. In February 1997 a group of ten Companies, known as the DVD Forum, proposed to TC31 to develop standards for the optical disks known as DVD disks. TC31 accepted this proposal and started the work that has led to two Ecma Standards that have been adopted by ISO/IEC under the fast-track procedure as International Standards. ECMA-267 (2001)

120 mm DVD-Read-Only Disk

ISO/IEC 16448 ECMA-268 (2001)

80 mm DVD-Read-Only Disk

ISO/IEC 16449 Further work, supported by nine members of the DVD Forum, has been undertaken for a rewritable disk known as DVD-RAM has led to two further Ecma and ISO/IEC Standards ECMA-272 (1999)

120 mm DVD Rewritable Disk (DVD-RAM)

ISO/IEC 16824 ECMA-273 (1998)

Case for 120 mm DVD-RAM Disks

ISO/IEC 16825 A new Standard ECMA-330 constituting a further development of Standard ECMA-272 proposed to, and accepted by, Ecma/TC31 on presentation by Toshiba Corporation on behalf of ten other Member Companies of the DVD Forum has been undertaken by Ecma/TC31. The development of the present Standard ECMA-331 was also proposed and accepted at the same time. It shall specify a case for use with the disks specified in Standard ECMA-330 so as to form an optical disk cartridge. Several Types are specified that allow meeting the requirements of different applications for which such cartridges are used.

This Ecma Standard has been adopted by the General Assembly of June 2004.

Table of contents

Section 1 – General

Scope

Conformance

N o r m a t i ve r e f e r e n c e s

Definitions

4.1

Cartridge

4.2

Case

C o n ve n t i o n s a n d n o t a t i o n s

5.1

Representation of numbers

5.2

Names

General description of the case

6.1

General description of the Type 1 case (Figure 1)

6.2

General description of the Type 2 case (Figure 2)

6.3

General description of the Type 3 case (Figure 2)

6.4

General description of the Type 4 case (Figure 3)

6.5

General description of the Type 5 case (Figure 3)

6.6

General description of the Type 6 case (Figure 4)

6.7

General description of the Type 7 case (Figure 5)

6.8

General description of the Type 8 case (Figure 4)

6.9

General description of the Type 9 case (Figure 5)

General requirements

7.1 Environments 7.1.1 Test environment 7.1.2 Operating environment 7.1.3 Storage environment 7.1.4 Transportation

7 7 7 8 8

7.2

Temperature shock

7.3

Safety requirement

7.4

Flammability

8 -i -

Section 2 – Dimensional and mechanical characteristics of the case for 120 mm 8 disks 8

Dimensional characteristics

8.1 Dimensions of the Type 1 case 8.1.1 Overall dimensions (Figure 6) 8.1.2 Location hole (Figure 6) 8.1.3 Alignment hole (Figure 6) 8.1.4 Reference surfaces (Figure 7) 8.1.5 Insertion slots (Figure 8) 8.1.6 Detents (Figure 8) 8.1.7 Gripper slots (Figure 8) 8.1.8 Write-inhibit hole (Figure 9) 8.1.9 Sensor holes (Figure 9) 8.1.10 Sensing areas (Figure 9) 8.1.11 Spindle and head window (Figure 10) 8.1.12 Shutter shape (Figure 11) 8.1.13 Path for shutter opener (Figures 12 and 13) 8.1.14 Label areas (Figure 14) 8.1.15 Identification marks for Sides A and B (Figure 15)

9 9 10 10 10 11 11 12 12 12 13 13 14 15 15 16

8.2 Dimensions of the Type 2 case 8.2.1 Overall dimensions (Figure 16) 8.2.2 Location hole (Figure 16) 8.2.3 Alignment hole (Figure 16) 8.2.4 Reference surfaces (Figure 17) 8.2.5 Insertion slot (Figure 18) 8.2.6 Detents (Figure 18) 8.2.7 Gripper slots (Figure 18) 8.2.8 Write-inhibit hole (Figure 19) 8.2.9 Sensor holes (Figure 19) 8.2.10 Sensing areas (Figure 19) 8.2.11 Spindle and head window (Figure 20) 8.2.12 Shutter shape (Figure 21) 8.2.13 Path for shutter opener (Figure 22 and 23) 8.2.14 Label areas (Figure 24) 8.2.15 Identification mark for Side A (Figure 25) 8.2.16 Opening and opening cover for taking the disk out of the case

27 27 28 28 28 29 29 30 30 31 31 31 32 33 33 34 34

8.3 Dimensions of the Type 3 case 8.3.1 Sensor holes 8.3.2 Opening and opening cover for taking the disk out of the case

44 44 45

8.4 Dimensions of the Type 4 case 8.4.1 Sensor holes 8.4.2 Opening and opening cover for taking the disk out of the case

45 45 45

8.5 Dimensions of the Type 5 case 8.5.1 Sensor holes

45 46 - ii -

8.5.2 9

Opening and opening cover for taking the disk out of the case

Mechanical characteristics

46 46

9.1

Material

9.2

Mass

9.3

Edge distortion

9.4

Compliance

9.5

Shutter opening force

I n t e r f a c e b e t w e e n t h e c a s e u s e d a s c a r t r i d g e a n d a d r i ve

10.1

Capture cylinder (Figure 26)

10.2

Inner dimensions of the case (Figure 27)

Orientation of the disk in the case

11.1

Two-sided disk (Type 2S) in case Types 1, 4 and 5

11.2

One-sided disk (Type 1S) in case Types 1, 2 and 3

Section 3 – Dimensional and Mechanical characteristics of the case for 80 mm 51 disk 12

Dimensional characteristics

12.1 Dimensions of the Type 6 case 12.1.1 Overall dimensions (Figure 28) 12.1.2 Location hole (Figure 28) 12.1.3 Alignment hole (Figure 28) 12.1.4 Reference surfaces (Figure 29) 12.1.5 Mis-insertion protection slots (Figure 30) 12.1.6 Detents (Figure 30) 12.1.7 Write-inhibit hole (Figure 31) 12.1.8 Sensor holes (Figure 31) 12.1.9 Spindle and head window (Figure 32) 12.1.10 Shutter shape (Figure 33) 12.1.11 Path for shutter opener (Figure 34) 12.1.12 Label areas (Figure 35) 12.1.13 Identification marks for Sides A and B (Figure 36) 12.1.14 Disk holder and body (Figures 37 and 38)

51 51 52 52 52 53 53 54 54 55 56 57 57 58 58

12.2 Dimensions of the Type 7 case 12.2.1 Overall dimensions (Figure 39) 12.2.2 Location hole (Figure 40) 12.2.3 Alignment hole (Figure 40) 12.2.4 Reference surfaces (Figure 40) 12.2.5 Mis-insertion protection slots (Figure 41) 12.2.6 Detents (Figure 41) 12.2.7 Write-inhibit hole (Figure 42)

72 72 72 73 73 73 74 75

- iii -

12.2.8 Sensor holes (Figure 42) 12.2.9 Spindle and head window (Figure 43) 12.2.10 Shutter shape (Figure 44) 12.2.11 Path for shutter opener (Figure 45) 12.2.12 Label areas (Figure 46) 12.2.13 Identification marks for Sides A and B (Figure 47) 12.2.14 Disk holder and body (Figure 48)

75 76 77 78 78 78 79

12.3 Dimensions of the Type 8 case 12.3.1 Sensor holes 12.3.2 Disk holder and body

93 93 93

12.4 Dimensions of the Type 9 case 12.4.1 Sensor holes 12.4.2 Disk holder and body

93 93 93

Mechanical characteristics

13.1

Material

13.2

Mass

13.3

Edge distortion

13.4

Compliance

13.5

Shutter opening force

I n t e r f a c e b e t w e e n t h e c a s e u s e d a s c a r t r i d g e a n d a d r i ve

14.1

Capture cylinder (Figure 50)

14.2

Inner dimensions of the case (Figure 51)

Orientation of the disk in the case

15.1

Two-sided disk (Type 2S) in case Types 6 and 8

15.2

One-sided disk (Type 1S) in case Types 7 and 9

A n n e x A ( n o r m a t i ve ) - P o s i t i o n o f t h e c a s e f o r 1 2 0 m m d i s k r e l a t i ve t o t h e 99 Reference Planes A n n e x B ( n o r m a t i ve ) - E d g e d i s t o r t i o n t e s t o f t h e c a s e f o r 1 2 0 m m d i s k

101

A n n e x C ( n o r m a t i ve ) - C o m p l i a n c e t e s t o f t h e c a s e f o r 1 2 0 m m d i s k

103

A n n e x D ( n o r m a t i ve ) - P o s i t i o n o f t h e c a s e f o r 8 0 m m d i s k r e l a t i ve t o t h e 105 Reference Planes A n n e x E ( n o r m a t i ve ) - E d g e d i s t o r t i o n t e s t o f t h e c a s e f o r 8 0 m m d i s k

107

A n n e x F ( n o r m a t i ve ) - C o m p l i a n c e t e s t o f t h e c a s e f o r 8 0 m m d i s k

109

A n n e x G ( n o r m a t i ve ) - S h u t t e r o p e n i n g f o r c e t e s t o f t h e c a s e f o r 8 0 m m d i s k

111

- iv -

A n n e x H ( i n f o r m a t i ve ) - E x a m p l e s o f a n o p e n i n g c o ve r f o r a T yp e 2 c a s e , a T yp e 113 3 c a s e , a T yp e 4 c a s e o r a T yp e 5 c a s e A n n e x J ( i n f o r m a t i ve ) - C o n n e c t i o n b e t w e e n d i s k h o l d e r a n d b o d y o f t h e c a s e f o r 115 80 mm disk A n n e x K ( i n f o r m a t i ve ) - T r a n s p o r t a t i o n

117

-v -

Section 1 – General 1

Scope This Ecma Standard specifies the characteristics of a case for use with the 120 mm and 80 mm DVD-RAM disks specified in Standard ECMA-330. The present Ecma Standard specifies nine related, but different implementations of this case, viz. Type 1

A case for a one-sided (Type 1S) or a two-sided (Type 2S) 120 mm DVD-RAM disk such that the disk cannot be removed from the case. This case is reversible.

Type 2

A case for a one-sided (Type 1S) 120 mm DVD-RAM disk such that the disk may be removed from the case. This case is not reversible.

Type 3

A case into which a one-sided (Type 1S) or a two-sided (Type 2S) 120 mm DVD-RAM disk may be inserted, then used as a cartridge. This case is not reversible.

Type 4

A case for a two-sided (Type 2S) 120 mm DVD-RAM disk such that the disk may be removed from the case. This case is reversible.

Type 5

A case into which a one-sided (Type 1S) or a two-sided (Type 2S) 120 mm DVD-RAM disk may be inserted, then used as a cartridge. This case is reversible.

Type 6

A case for a two-sided (Type 2S) 80 mm DVD-RAM disk such that the disk may be removed from the case. This case is reversible.

Type 7

A case for a one-sided (Type 1S) 80 mm DVD-RAM disk such that the disk may be removed from the case. This case is not reversible.

Type 8

A case into which a two-sided (Type 2S) 80 mm DVD-RAM disk may be inserted, then used as a cartridge. This case is reversible.

Type 9

A case into which a one-sided (Type 1S) 80 mm DVD-RAM disk may be inserted, then used as a cartridge. This case is not reversible.

This Ecma Standard specifies −

the environments in which the cases are to be operated and stored;

−

the dimensional and mechanical characteristics of the case, so as to provide mechanical interchangeability between data processing systems.

This Ecma Standard provides for mechanical interchange between optical disk drives. Together with Standard ECMA-330 for 120 mm (4,7 Gbytes per side) and 80 mm (1,46 Gbytes per side) DVD-RAM disks and a standard for volume and file structure, it provides for full data interchange between data processing systems.

Conformance A claim of conformance with this Ecma Standard shall specify the Type implemented. A case shall be in conformance with this Ecma Standard if it meets the mandatory requirements specified herein for its Type.

Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ECMA-330 (2002)

120 mm (4,7 Gbytes per side) and 80 mm (1,46 Gbytes per side) DVD Rewritable Disk (DVD-RAM)

ECMA-287 (2002)

Safety of electronic equipment -1-

Definitions For the purpose of this Ecma Standard the following definitions apply:

4.1

Cartridge A device consisting of a case containing a rewritable disk.

4.2

Case The housing for an optical disk, that protects the disk and facilitates disk interchange.

5 5.1

Conventions and notations Representation of numbers A measured value is rounded off to the least significant digit of the corresponding specified value. For instance, it implies that a specified value of 1,26 with a positive tolerance of + 0,01 and a negative tolerance of - 0,02 allows a range of measured values from 1,235 to 1,275.

5.2

Names The names of entities, e.g. specific sides, etc. are given a capital initial.

6 6.1

General description of the case General description of the Type 1 case (Figure 1) The case is a rigid protective container of rectangular shape. Sides A and B of the case are identical as far as the features given here are concerned. References to Sides A and B of the case can be changed to B or A, respectively. When the opening of the one is a head and spindle window for the spindle and the optical head of the drive, that of the other is an access window for the disk clamping apparatus. A shutter uncovers the windows upon insertion into the drive, and automatically covers them upon removal from the drive. The case has features that enable a drive to reject a mis-inserted cartridge, to inhibit writing, sensor holes, detents for autoloading and a vertical use, gripper slots for an autochanger, label areas and side identification marks. Sides A and B of the case have the same configuration.

6.2

General description of the Type 2 case (Figure 2) The Type 2 case has the same features as the Type 1 case, but with some differences. The shape of the case is different on Side A and on Side B. Side A does not need to have a location hole, an alignment hole, Reference Surfaces, a write-inhibit hole, sensor holes and sensing areas. The case has an opening closed by a cover. This cover can be opened. In open position, the disk can be taken out of the case. Sensor hole A1 is originally closed. If the disk has been removed from the case, then this hole remains permanently open, indicating that the original disk contained in the case has been removed at least once or has been replaced by another disk.

-2-

6.3

General description of the Type 3 case (Figure 2) The Type 3 case is identical with Type 2 case except that the sensor hole A1 is always open. Case Side A Reference surface S3 Identification mark of Case Side A

Edge for shutter opener

Disk Side B

Shutter

1 Reference surface S1

Reference surface S4 Location hole

Sensor holes for disk Side B

Detent for autoloading

Write-inhibit hole for disk Side B

Insertion slot Spindle and head window

Label area Alignment hole

Reference surface S2

Detent for vertical use

Gripper slot Sensing area

01-0088-A

Figure 1 - General view of the Type 1 case, seen from Side A

-3-

Case Side A

Identification mark of Case Side A Disk Side B

Edge for the shutter opener Shutter

Detent for autoloading

Detent for vertical use

Insertion slot Spindle and head window

Label area Opening cover Gripper slot

01-0089-A

Figure 2 - General view of the Type 2 and Type 3 cases, seen from Side A

6.4

General description of the Type 4 case (Figure 3) The Type 4 case has the same features as the Type 1 case, but with some differences. The case has an opening closed by a cover. This cover can be opened. In open position, the disk can be taken out of the case. If the disk has been removed from the case, then the sensor hole A1 and B1 remain permanently open, indicating that the original disk contained in the case has been removed at least once or has been replaced by another disk.

-4-

6.5

General description of the Type 5 case (Figure 3) The Type 5 case is identical with Type 4 case except that the sensor hole A1 and B1 are always open.

Case Side A Reference surface S3 Side A identification mark

Edge for shutter opener

Disk Side B

Shutter

Reference surface S1 Reference surface S4

Location hole

Detent for Autoloading

Sensor holes for disk Side B Write-inhibit hole for disk Side B

Insertion slot Spindle and head window

Label area Opening cover

Reference surface S2 Alignment hole Gripper slot

Detent for vertical use Sensing area

01-0045-A

Figure 3 - General view of the Type 4 and Type 5 cases, seen from Side A

6.6

General description of the Type 6 case (Figure 4) The case is a rigid protective container of rectangular shape. It consists of a body and a disk holder. This disk holder can be taken out of the body and then the disk can be taken out of the case. Sensor hole A1 and B1 are originally closed. If the disk holder has been taken out of the body, then these holes remain permanently open, indicating that the original disk contained in the case has been removed at least once or has been replaced by another disk. Sides A and B of the case are identical as far as the features given here are concerned. References to Sides A and B of the case can be changed to B or A, respectively. When the opening of the one is a head and spindle window for the spindle and the optical head of the drive, that of the other is an access window for the disk clamping apparatus. A shutter uncovers the windows upon insertion into the drive, and automatically covers them upon removal from the drive. The case has features that enable a drive to reject a mis-inserted cartridge, to inhibit writing, sensor holes, detents for autoloading and a vertical use, gripper slots for an autochanger, label areas and side identification marks. -5-

Sides A and B of the case have the same configuration.

6.7

General description of the Type 7 case (Figure 5) The Type 7 case has the same features as the Type 6 case, but with some differences. The shape of the case is different on Side A and on Side B. Side A does not need to have a location hole, an alignment hole, Reference Surfaces, a write-inhibit hole, sensor holes and sensing areas. Sensor hole A1 is originally closed. If the disk holder has been taken out of the body, then this hole remains permanently open, indicating that the original disk contained in the case has been removed at least once or has been replaced by another disk. Side B of this case shall not have label area.

6.8

General description of the Type 8 case (Figure 4) The Type 8 case is identical with Type 6 case except that the sensor hole A1 and B1 are always open.

6.9

General description of the Type 9 case (Figure 5) The Type 9 case is identical with Type 7 case except that the sensor hole A1 is always open.

Reference surface S4 Case Side A

Disk Side B Label area

Shutter Reference surface S3

Reference surface S2 Alignment hole

Detent for autoloading

Disk holder

Spindle and head window

Side A identification mark

Location hole Reference surface S1

Mis-insertion protection slot

Write-inhibit hole for disk Side B Sensor holes for disk Side B

Detent for vertical use 01-0046-A

Figure 4 - General view of the Type 6 and Type 8 cases, seen from Side A

-6-

Case Side A

Disk Side B Label area

Shutter

Label area

Detent for autoloading Disk holder Mis-insertion protection slot Side A identification mark

Spindle and head window Mis-insertion protection slot

Detent for vertical use 01-0047-A

Figure 5 - General view of the Type 7 and Type 9 cases, seen from Side A

General requirements

7.1 7.1.1

Environments T e s t e n vir o n m e n t The test environment is the environment where the air immediately surrounding the case has the following properties: Temperature: Relative humidity: Atmospheric pressure:

23 °C ± 2 °C 50 % ± 5 % 86 kPa to 106 kPa

No condensation on or in the case or cartridge shall occur. Before testing, the case or cartridge shall be conditioned in this environment for 48 hours minimum. Unless otherwise stated, all tests and measurements shall be made in this test environment. 7.1.2

O p e r a t i n g e n vir o n m e n t The case shall meets all requirements of this Ecma Standard in the specified test environment and provide mechanical interchange over the specified ranges of environmental parameters in the operating environment. When the case according to this Ecma Standard contains a DVDRAM disk according to Standard ECMA-330, they constitute together a cartridge. This cartridge shall meet the requirements of this clause and provides for data interchange.

-7-

The operating environment is the environment where the air immediately surrounding the case or cartridge has the following properties: Temperature: Relative humidity: Absolute humidity: Temperature gradient: Relative humidity gradient:

5 °C to 60 °C 3 % to 85 % 1 g/m 3 to 30 g/m 3 10 °C /h max. 10 %/h max.

No condensation on or in the case or cartridge shall occur. If the case or cartridge has been exposed to conditions outside those specified in this clause, it shall be acclimatized in the operating environment for at least 2 h before use. 7.1.3

S t o r a g e e n vir o n m e n t The storage environment is defined as an environment where the air immediately surrounding the case or cartridge has the following properties. Temperature: Relative humidity: Absolute humidity: Atmospheric pressure: Temperature gradient: Relative humidity gradient:

-10 °C to 50 °C 3 % to 85 % 1 g/m 3 to 30 g/m 3 75 kPa to 106 kPa 10 °C /h max. 10 %/h max.

No condensation on or in the case or cartridge shall occur. 7.1.4

7.2

Transportation This does not specify requirements for transportation; guidance is given in Annex E.

Temperature shock The case shall withstand a temperature shock of up to 20°C when inserted into, or removed from, the drive.

7.3

Safety requirement The case shall satisfy the safety requirements of Standard ECMA-287, when used in the intended manner or in any foreseeable use in an information processing system.

7.4

Flammability The case shall be made from materials shall be of materials that, if ignited from a match flame, shall not continue to burn in a still carbon dioxide atmosphere.

Section 2 – Dimensional and mechanical characteristics of the case for 120 mm disks 8

Dimensional characteristics The dimensions of the case shall be referred to three orthogonal Reference Planes X, Y and Z. The case shall be constrained such that four reference surfaces S1 to S4 on Side B of the case lie in Reference Plane Z. The intersection of the three planes defines the centre of the location hole. The centre of the alignment hole shall lie on the intersection of Reference Planes X and Z. Refer to Annex A. A dimension of a feature referenced to one of the planes is the shortest distance from the feature to the plane. Side A of the Type 1, Type 4 and Type 5 cases are referred to as the three orthogonal Reference Planes X, Y' and Z', where − −

Y' is a plane parallel to Reference Plane Y at a nominal distance of 102,0 mm, Z' is a plane parallel to Reference Plane Z at a nominal distance of 8,0 mm.

-8-

8.1

Dimensions of the Type 1 case The dimensions of the Type 1 case shall be measured in the test environment (see 7.1.1). The dimensions of the case in an operating environment (see 7.1.2) can be estimated from the dimensions specified in this clause.

8.1.1

O ve r a l l d i m e n s i o n s ( F i g u r e 6 ) The total length of the case shall be L 101 = 135,5 mm ± 0,4 mm At a width L 103 = 3,6 mm min the distance from the top of the case to Reference Plane X shall be + 0,3 mm

L 102 = 112,5 mm

- 0,2 mm

from the left-hand and right-hand edges of the case. The distance from the bottom of the case to Reference Plane X shall be L 104 = 23,0 mm ± 0,2 mm. The total width of the case shall be + 0,0 mm

L 105 = 124,6 mm

- 0,5 mm

The distance from the left-hand side of the case to Reference Plane Y shall be + 0,2 mm

L 106 = 1133,3 mm

- 0,4 mm

The distance from the right-hand side of the case to Reference Plane Y shall be + 0,1 mm

L 107 = 113,3 mm

- 0,3 mm.

The two corners of the top shall be rounded off with a radius R 101 = 4,0 mm ± 0,2 mm centred at L 108 = 4,0 mm ± 0,1 mm from the edge of the case and L 109 = 3,5 mm ± 0,1 mm from the top of the case. The two corners of the bottom shall be rounded off with a radius R 102 = 4,0 mm ± 0,2 mm. In the zones delimited by L 110 = 6,0 mm from the left-hand and right-hand edges of the case, there shall be the continuous guide areas running from the top to Reference Plane X of the case, with a width L 111 = 0,8 mm min.

-9-

The thickness of the case shall be + 0,2 mm

L 112 = 8,0 mm

- 0,1 mm.

The eight long edges of the case shall be rounded off with a radius R 103 = 0,5 mm ± 0,1 mm. 8.1.2

Location hole (Figure 6) The centre of the location hole shall coincide with the intersection of Reference Planes X, Y and Z. The diameter of the hole shall be + 0,05 mm

D 101 = 4,00 mm

- 0,00 mm

Its depth shall be L 113 = 1,2 mm min. The room below the location hole shall be free by L 114 = 5,0 mm min. below Reference Plane Z The diameter of the free room shall be at least equal to D 101. The lead-in edges shall be rounded off with a radius R 104 = 0,5 mm ± 0,1 mm. 8.1.3

Alignment hole (Figure 6) The centre of the alignment hole shall lie on the intersection of the Reference Planes X and Z at a distance L 115 = 102,0 mm ± 0,2 mm from Reference Plane Y. The alignment hole shall have a substantially rectangular shape. Its dimensions shall be + 0,05 mm

L 116 = 4,00 mm

- 0,00 mm + 0,2 mm

L 117 = 5,6 mm

- 0.00 mm

Its depth shall be equal to L 113. The room below the alignment hole shall be free by at least L 114. The dimensions of the free room shall be at least L 116 and L 117. The lead-in edges shall be rounded off with a radius R 104. 8.1.4

Reference surfaces (Figure 7) There shall be four reference surfaces S1, S2, S3 and S4 on Side B of the case. Surfaces S1 and S2 shall be circular with a diameter D 102 = 7,0 mm min. S1 shall be centred on the location hole, and S2 shall be centred on the alignment hole. Surfaces S3 and S4 shall be rectangular with dimensions L 118 = 8,2 mm max. L 119 = 110,2 mm max. - 10 -

from Reference Plane Y and L 120 = 87,0 mm max. L 121 = 108,0 mm min. from Reference Plane X, except in the areas of the detents for autoloading. 8.1.5

Insertion slots (Figure 8) The case shall have two symmetrical insertion slots. The bottom of the slots shall be at a distance L 123 = 60,0 mm ± 0,2 mm from Reference Plane X. The depth measured from the edge of the case shall be + 0,2 mm

L 124 = 2,0 mm

- 0,0 mm.

The side of the insertion slots parallel to Reference Plane Z shall be at a distance L 125 = 2,5 mm ± 0,1 mm from Reference Plane Z. The width of the insertion slots shall be + 0,2 mm

L 126 = 3,0 mm

- 0,0 mm.

The slots shall have a lead-in slope defined by L 127 = 7,0 mm ± 0,2 mm from the top of the case and an angle α101 = 7,5° ± 1,0°. 8.1.6

Detents (Figure 8) The case shall have two symmetrical detents intended for autoloading. The detents shall be through Side A and Side B. The position and dimensions of the detents shall be R 105 = 0,5 mm max. L 128 = 100,5 mm ± 0,3 mm L 129 = 93,0 mm ± 0,3 mm L 130 = 3,3 mm ± 0,1 mm L 131 = 2,5 mm ± 0,1 mm. The outside edges of the detents shall be rounded off with a radius R 106 = 0,5 mm ± 0,1 mm. The bottom of the case shall have two symmetrical detents intended for clamping a cartridge in case of vertical use. Their dimensions shall be L 132 = 3,0 mm ± 0,1 mm L 133 = 3,0 mm ± 0,1 mm L 134 = 1,0 mm ± 0,1 mm The centre of one of these detents shall lie on Reference Plane Y and the centre of the other hall be at a distance L 135 = 102,0 mm ± 0,3 mm - 11 -

from Reference Plane Y. Both centres shall be at a distance L 136 = 4,0 mm ± 0,1 mm from Reference Plane Z. 8.1.7

Gripper slots (Figure 8) The case shall have two symmetrical gripper slots. The slots shall be through Sides A and B. Each slot shall have a depth of + 0,3 mm

L 137 = 3,0 mm

- 0,0 mm

from the edge of the case and a width of + 0,3 mm

L 138 = 4,0 mm

- 0,0 mm.

The upper edge of the slot shall be at + 0,0 mm

L 139 = 11,0 mm

- 0,3 mm

from Reference Plane X. The corners of the slot shall be rounded off by a radius R 107 = 0,5 mm ± 0,2 mm. 8.1.8

Write-inhibit hole (Figure 9) The cases for two-sided disks shall have a write-inhibit hole on both Sides A and B. The cases for one-sided disks shall have a write-inhibit hole on Side B only. The write-inhibit hole shall have a device for opening and closing the hole. The hole at the right-hand side of Side B of the case, is the write-inhibit hole for Side A of the disk. The protected side of the disk shall be identified either by an indication on the case or by the fact that the device for Side A of the disk can be operated only from Side A of the case. When writing and erasing on Side A of the disk are not allowed, the write-inhibit hole shall be open. It shall have a diameter D 103 = 3,0 mm min. The position of its centre shall be specified on Side B of the case by L 140 = 18,5 mm ± 0,2 mm L 141 = 9,0 mm ± 0,2 mm The hole shall extend below Reference Plane Z by L 142 = 5,0 mm min. with a diameter equal at least to D 103. When writing and erasing of the disk are allowed, the write-inhibit hole shall be closed by the write protect device. The write protect device shall not be recessed from Reference Plane Z by more than 0,3 mm.

8.1.9

Sensor holes (Figure 9) The case shall have three sensor holes on Side B. The set of holes on Side B of the case, A1, A2 and A3 pertains to Side A of the disk. The holes shall have a diameter of D 104 = 3,0 mm min.

- 12 -

The positions of their centres shall be specified by L 140 and L 144 = 7,5 mm ± 0,2 mm L 145 = 3,5 mm ± 0,2 mm L 146 = 2,0 mm ± 0,2 mm. The room below the holes shall be free by L 147 = 5,0 mm min. from Reference Plane Z. The diameter of the free room shall be at least equal to D 104. The holes shall be permitted to extend through Side A. When a hole for Side A of the disk is closed, the closure shall not be recessed from Reference Plane Z by more than 0,3 mm. Side A of the case shall have corresponding sensor holes B1, B2 and B3 with the diameter D 104. The functions identified by the states of the sensor holes are specified in Table 1. Table 1 - States of the sensor holes Sensor

Function

State

hole

Closed

Open

The original disk is in the case

Not permitted

Closed

Active side

Not permitted

Closed

Reserved for future standardization

Closed

Case for a Case for a two-sided disk one-sided disk

The original disk is in the case

Not permitted

Closed

Active side

Non active side

Closed

Open

Reserved for future standardization

Closed

B3 8.1.10

Sensing areas (Figure 9) The case shall have two sensing areas on Side B used by drives for the detection of a cartridge. The first area shall be limited by Reference Planes X and Y, the bottom and the righthand side of the case. The second area shall be limited by Reference Plane X, a plane parallel to Reference Plane Y at a distance equal to L 115, the bottom and the left-hand side of the case. These areas may be recessed from Reference Plane Z by 0,3 mm max., except for the reference surfaces S1 and S2, the gripper slots and the sensor holes.

8.1.11

S p i n d l e a n d h e a d w in d o w ( F i g u r e 1 0 ) The dimensions of the window shall be referenced to a centreline, located at a distance L 150 = 51,0 mm ± 0,1 mm from Reference Plane Y. The width of the window from the top of the case to L 151 = 50,0 mm max. shall be + 0,2 mm

L 152 = 19,5 mm

- 0,00 mm

- 13 -

and + 0,2 mm

L 153 = 19,5 mm

- 0,00 mm

The top of the window shall be specified by R 108 = 60,7 mm min. originating from the intersection of L 150 and L 154 = 40,0 mm ± 0,1 mm. The width of the window from L 151 to L 154 shall be given by L 155 = 17,0 mm min. and L 156 = 17,0 mm min. The bottom of the window shall be the arc of the semi-circle that smoothly joins the sides of the window, specified by a radius R 109 = 17,0 mm min. and its centre shall be defined by the intersection of L 150 and L 154. The area bounded by R 108 and top of the case shall be recessed from Reference Plane Z by L 157 = 2,55 mm min. over the width of the window. 8.1.12

Shutter shape (Figure 11) The case shall have a spring-loaded shutter completely covering the spindle and the head window when the case is not inside a drive. The shutter shall be free to slide in a recessed area of the case. The shutter shall not protrude beyond Reference Planes Z or Z' by more than 0,15 mm. When introduced into a drive, the shutter shall be moved so as to uncover the spindle and the head windows. It shall have a pair of guide edges against which the shutter opening mechanism of the drive can act to open the shutter. The shutter can be shifted right or left. Both guide edges shall be located at + 0,2 mm

L 158 = 112,0 mm

- 0,4 mm

from Reference Plane X. When the shutter is closed, the right-hand opener edge shall be at L 159 = 38,0 mm ± 0,4 mm and the left-hand opener edge shall be at L 160 = 64,0 mm ± 0,4 mm from Reference Plane Y. The depth of each opener edge shall be at + 0,2 mm

L 161 = 3,0 mm

- 0,0 mm

from L 158 and the top shall be rounded off with a radius R 110 = 0,5 mm max.

- 14 -

The length of the guide edges measured from the corresponding opener edge shall be L 162 = 7,0 mm min. The intersection of the guide edges and the opener edges shall be rounded off with a radius R 111 = 0,5 mm max. Other corners of the guide and opener edges shall be rounded off with a radius R 112 = 1,0 mm max. 8.1.13

Path for shutter opener (Figures 12 and 13) When the shutter is moved rightwards until the left-hand opener edge is at a distance L 163 = 26,5 mm from Reference Plane Y, the windows shall be open over L 164 = 16,5 mm min. from L 150 and over an arc of R 113 = 17,0 mm min. originating at the intersection of L 150 and L 154. The left-hand opener edge shall be at L 165 = 26,0 mm max. from Reference Plane Y, when the shutter is in its right-hand end position. When the corresponding the position of the right-hand opener edge is L 166 = 75,5 mm, the windows shall be open at L 164 from L 150 and with a radius R 113 originating at the intersection of L 150 and L 154. The position of the right-hand opener edge shall be L 167 = 76,0 mm min. when the shutter is in its left-hand end position.

8.1.14

Label areas (Figure 14) The case shall have three label areas on Side A and Side B and on the bottom side, with the following dimensions. On Sides A and B L 168 = 10,0 mm ± 0,2 mm L 169 = 13,0 mm ± 0,2 mm L 170 = 76,0 mm ± 0,3 mm R 114 = 2,0 mm ± 0,2 mm On the bottom side L 171 = 13,0 mm ± 0,2 mm L 172 = 76,0 mm ± 0,3 mm L 173 = 5,0 mm ± 0,2 mm L 174 = 97,0 mm ± 0,3 mm L 175 = 1,0 mm ± 0,2 mm L 176 = 6,0 mm ± 0,2 mm. The label area shall be recessed by 0,2 mm min. on all three sides. - 15 -

8.1.15

Identification marks for Sides A and B (Figure 15) Side A and Side B shall be identified by an identification mark provided on a concave part on the right-hand side of Side A and Side B, respectively. On Side A, this concave part presents one small round projection, on Side B two such projections are provided. The position and dimensions of these identification marks shall be as follows. Side A + 0,1 mm

R 115 = 0,5 mm

- 0,0 mm

R 116 = 18,0 mm ± 1,0 mm + 0,1 mm

L 178 = 0,5 mm

- 0,0 mm

L 179 = 7,0 mm ± 0,3 mm L 180 = 5,0 mm ± 0,3 mm + 0,1 mm

L 181 = 0,6 mm

- 0,0 mm

Side B + 0,1 mm

R 115 = 0,5 mm

- 0,0 mm

R 116 = 18,0 mm ± 1,0 mm + 0,1 mm

L 178 = 0,5 mm

- 0,0 mm

L 179 = 7,0 mm ± 0,3 mm L 180 = 5,0 mm ± 0,3 mm + 0,1 mm

L 181 = 0,6 mm

- 0,0 mm

L 182 = 3,2 mm ± 0,3 mm.

- 16 -

R 101

L 110

L 108

L 109

R103

L 109

R 101

L 109

L102

R103

L 108

L 103

L 111

L101

L 116

L 104

R 102

R102

D101

L 117

A L 107

L115

R103

L 106

L 105

R103

L 112 R103

R103 R104

R104 L 114

97-0095-A

L 113 L 114

L 113

Section A-A (Larger scale) Figure 6 - Overall dimensions - 17 -

R103

L 118 L 119

L 121 L 120

X S2

D 102

102

L 115 97-0096-A

Figure 7 - Reference surfaces

- 18 -

L 126

a 101

L 130

R106

L 131

L127

L 125

L 124

R105

L 128 L129 L 123 X

R107 L139 L138

R107 L137

Y B

L 135

L133

L 133

L132

L134

Section B-B (Larger scale)

97-0097-A

Figure 8 - Insertion slots, detents and gripper slots - 19 -

L136

Y L 144

Side B

L 140

D 103 A2 A3 D D 104 C L 146 L 145 L 141 Y

Y’

Side A

L 144 L 140

D 103

D104 L 146 L 145 L 141

D 103

L142

Section C-C (Larger scale) Writing permitted

Section C-C (Larger scale) Writing inhibited

D 104

01-0090-A

L147

Section D-D (Larger scale) Closed

Figure 9 - Write-inhibit hole, sensor holes and sensing areas - 20 -

Section D-D (Larger scale) Open

L 157

Z L 153

L 152

R108

L 156

L155

R109

L 154

L 151 X

L 150 97-0099-A

Figure 10 - Spindle and head window

- 21 -

R112 L 162

R112

L 160 L 159

L 161

L 162

R111

Section F-F R

110

L 158

97-0100-A

Figure 11 - Shape of the shutter

- 22 -

L163

L164

R113

L154

150

165

97-0101-A

Figure 12 - Shutter in just right-hand open position (top view) and maximum right-hand open position (bottom view)

- 23 -

L 166

L164

R113 L154

L150 L167

97-0102-A

Figure 13 - Shutter in just left-hand open position (top view) and maximum left-hand open position (bottom view)

- 24 -

L168 X

R114

L169

L170

L174 L176

L175

L172

97-0103-A

Figure 14 - Label areas

- 25 -

L171 L173

L179

179

L180

L180 Side B

116

115

Side A

R115

178

L181

116

115

L 182 Section H-H (Larger scale)

Section G-G (Larger scale)

97-0104-A

Figure 15 - Identification marks of Side A and B

- 26 -

178

L181

8.2

Dimensions of the Type 2 case The dimensions of the Type 2 case shall be measured in the test environment (see 7.1.1). The dimensions of the case in an operating environment (see 7.1.2) can be estimated from the dimensions specified in this clause.

8.2.1

O ve r a l l d i m e n s i o n s ( F i g u r e 1 6 ) The total length of the case shall be L 201 = 135,5 mm ± 0,4 mm. At a width L 203 = 3,6 mm min. the distance from the top of the case to Reference Plane X shall be + 0,3 mm

L 202 = 112,5 mm

- 0,2 mm

from the left-hand and right-hand edges of the case. The distance from the bottom of the case to Reference Plane X shall be L 204 = 23,0 mm ± 0,2 mm. The total width of the case shall be + 0,0 mm

L 205 = 124,6 mm

- 0,5 mm

The distance from the left-hand side of the case to Reference Plane Y shall be + 0,2 mm

L 206 = 113,3 mm

- 0,4 mm

The distance from the right-hand side of the case to Reference Plane Y shall be + 0,1 mm

L 207 = 11,3 mm

- 0,3 mm

The two corners of the top shall be rounded off with a radius R 201 = 4,0 mm ± 0,2 mm centred at L 208 = 4,0 mm ± 0,1 mm from the edge of the case and L 209 = 3,5 mm ± 0,1 mm from the top of the case. The two corners of the bottom shall be rounded off with a radius R 202 = 4,0 mm ± 0,2 mm. In the zones delimited by L 210 = 6,0 mm from the left-hand and right-hand edges of the case, there shall be the continuous guide areas running from the top to Reference Plane X of the case, with a width L 211 = 0,8 mm min.

- 27 -

the thickness of the case shall be + 0,2 mm

L 212 = 8,0 mm

- 0,1 mm

The eight long edges of the case shall be rounded off with a radius R 203 = 0,5 mm ± 0,1 mm. L 210 and L 211 shall be defined on Side A as well as Side B. 8.2.2

Location hole (Figure 16) The centre of the location hole shall coincide with the intersection of Reference Planes X, Y and Z. The diameter of the hole shall be + 0,05 mm

D 201 = 4,00 mm

- 0,00 mm

Its depth shall be L 213 = 1,2 mm min. The room below the location hole shall be free by L 214 = 5,0 mm min. from Reference Plane Z The diameter of the free room shall be at least equal to D 201. The lead-in edges shall be rounded off with a radius R 204 = 0,5 mm ± 0,1 mm. 8.2.3

Alignment hole (Figure 16) The centre of the alignment hole shall lie on the intersection of the Reference Planes X and Z at a distance L 215 = 102,0 mm ± 0,2 mm from Reference Plane Y. The alignment hole shall have a substantially rectangular shape. Its dimensions shall be + 0,05 mm

L 216 = 4,00 mm

- 0,00 mm + 0,2 mm

L 217 = 5,6 mm

- 0,0 mm

Its depth shall be equal to L 213. The room below the alignment hole shall be free by at least L 214. The dimensions of the free room shall be at least L 216 and L 217. The lead-in edges shall be rounded off with a radius R 204. 8.2.4

Reference surfaces (Figure 17) There shall be four reference surfaces S1, S2, S3 and S4 on Side B of the case. Surfaces S1 and S2 shall be circular with a diameter D 202 = 7,0 mm min. S1 shall be centred on the location hole, and S2 shall be centred on the alignment hole. Surfaces S3 and S4 shall be rectangular with dimensions L 218 = 8,2 mm max. L 219 = 110,2 mm max. - 28 -

from Reference Plane Y and L 220 = 87,0 mm max. L 221 = 108,0 mm min. from Reference Plane X, except in the areas of the detents for autoloading. 8.2.5

Insertion slot (Figure 18) The case shall have an insertion slot on its right-hand side. The bottom of the slots shall be at a distance L 223 = 60,0 mm ± 0,2 mm from Reference Plane X. The depth measured from the edge of the case shall be + 0,2 mm

L 224 = 2,0 mm

- 0,0 mm

The side of the insertion slot parallel to Reference Plane Z shall be at a distance L 225 = 2,5 mm ± 0,1 mm from Reference Plane Z. The width of the insertion slot shall be + 0,2 mm

L 226 = 3,0 mm

- 0,0 mm

The slots shall have a lead-in slope defined by L 227 = 7,0 mm ± 0,2 mm from the top of the case and an angle α201 = 7,5° ± 1,0°α. 8.2.6

Detents (Figure 18) The case shall have two symmetrical detents intended for autoloading. The detents shall not extend through Side A. The position and dimensions of the detents shall be R 205 = 0,5 mm max. L 228 = 100,5 mm ± 0,3 mm L 229 = 93,0 mm ± 0,3 mm L 230 = 3,3 mm ± 0,1 mm L 231 = 2,5 mm ± 0,1 mm. The outside edges of the detents shall be rounded off with a radius R 206 = 0,5 mm ± 0,1 mm. The depth of the detents shall be L 232 = 6,5 mm ± 0,2 mm. The bottom of the case shall have two symmetrical detents intended for clamping a cartridge in case of vertical use. Their dimensions shall be L 233 = 3,0 mm ± 0,1 mm L 234 = 3,0 mm ± 0,1 mm L 235 = 1,0 mm ± 0,1 mm

- 29 -

The centre of one of these detents shall lie on Reference Plane Y and the centre of the other shall be at a distance L 236 = 102,0 mm ± 0,3 mm from Reference Plane Y. Both centres shall be at a distance L 237 = 4,0 mm ± 0,1 mm from Reference Plane Z. 8.2.7

Gripper slots (Figure 18) The case shall have two symmetrical gripper slots. The slots shall not extend through Side A. Each slot shall have a depth of + 0,3 mm

L 238 = 3,0 mm

- 0,0 mm

from the edge of the case and a width of + 0,3 mm

L 239 = 4,0 mm

- 0,0 mm.

The upper edge of the slot shall be at + 0,0 mm

L 240 = 11,0 mm

- 0,3 mm

from Reference Plane X. The corners of the slot shall be rounded off by a radius R 207 = 0,5 mm ± 0,2 mm. The depth of the gripper slots shall be L 241 = 6,5 mm ± 0,2 mm. 8.2.8

Write-inhibit hole (Figure 19) The case shall have a write-inhibit hole on Side B. The write-inhibit hole shall have a device for opening and closing the hole. When writing and erasing on Side A of the disk are not allowed, the write-inhibit hole shall be open. It shall have a diameter D 203 = 3,0 mm min. The position of its centre shall be specified by L 242 = 18,5 mm ± 0,2 mm L 243 = 9,0 mm ± 0,2 mm on Side B of the case. The hole shall extend below Reference Plane Z by L 244 = 5,0 mm min. with a diameter equal at least to D 203. When writing and erasing of the disk are allowed, the write-inhibit hole shall be closed by the write protect device. The write protect device shall not be recessed from Reference Plane Z by more than 0,3 mm.

- 30 -

8.2.9

Sensor holes (Figure 19) The case shall have three sensor holes on Side B. The set of holes on Side B of the case, A1, A2 and A3 pertains to Side A of the disk. The holes shall have a diameter of D 204 = 3,0 mm min. and the positions of their centres shall be specified by L 242 and L 246 = 7,5 mm ± 0,2 mm L 247 = 3,5 mm ± 0,2 mm L 248 = 2,0 mm ± 0,2 mm. The room below the holes shall be free up to L 249 = 5,0 mm min. above Reference Plane Z. The diameter of the free room shall be at least equal to D 204. The holes shall be permitted to extend through Side A. When a hole for Side A of the disk is closed, the closure shall not be recessed from Reference Plane Z by more than 0,3 mm. The sensor hole A1 shall indicate whether a disk has been taken out once or not. Originally, the sensor hole A1 shall be closed, and once a disk has been taken out of the case, this hole shall be opened and never closed again. The functions identified by the states of the sensor holes are specified in Table 2. Table 2 - States of the sensor holes Sensor

Function

State

hole

Closed

Open

The original disk is in the case

The original disk has been taken out, or a disk has been put in

Closed / Open

Active side

Not permitted

Closed

Reserved for future standardization

Closed

A3 8.2.10

Sensing areas (Figure 19) The case shall have two sensing areas on Side B used by drives for the detection of a cartridge. The first area shall be limited by Reference Planes X and Y, the bottom and the righthand side of the case. The second area shall be limited by Reference Plane X, a plane parallel to Reference Plane Y at a distance equal to L 215, the bottom and the left-hand side of the case. These areas may be recessed from Reference Plane Z by 0,3 mm max., except for the reference surfaces S1 and S2, the gripper slots and the sensor holes.

8.2.11

S p i n d l e a n d h e a d w in d o w ( F i g u r e 2 0 ) The dimensions of the window shall be referenced to a centreline, located at a distance L 252 = 51,0 mm ± 0,1 mm from Reference Plane Y. The width of the window from the top of the case to L 253 = 50,0 mm max. shall be + 0,2 mm

L 254 = 19,5 mm

- 0,0 mm

- 31 -

and + 0,2 mm

L 255 = 19,5 mm

- 0,0 mm.

The top of the window shall be specified by R 208 = 60,7 mm min. originating from the intersection of L 250 and L 256 = 40,0 mm ± 0,1 mm. The width of the window from L 253 to L 256 shall be given by L 257 = 17,0 mm min. and L 258 = 17,0 mm min. The bottom of the window shall be the arc of the semi-circle that smoothly joins the sides of the window, specified by a radius R 209 = 17,0 mm min. Its centre shall be defined by the intersection of L 252 and L 256. The area bounded by R 208 and top of the case shall be recessed from Reference Plane Z by L 259 = 2,55 mm min. L 260 = 5,65 mm max. over the width of the window. 8.2.12

Shutter shape (Figure 21) The case shall have a spring-loaded shutter completely covering the spindle and head window when the case is not inside a drive. The shutter shall be free to slide in a recessed area of the case. The shutter shall not protrude beyond Reference Planes Z or the surface of Side A by more than 0,15 mm. When introduced into a drive, the shutter shall be moved so as to uncover the spindle and head window. It shall have a pair of guide edges against which the shutter opening mechanism of the drive can act to open the shutter. The shutter can be shifted right or left. Both guide edges shall be located at + 0,2 mm

L 261 = 112,0 mm

- 0,4 mm.

from Reference Plane X. When the shutter is closed, the right-hand opener edge shall be at L 262 = 38,0 mm ± 0,4 mm and the left-hand opener edge shall be at L 263 = 64,0 mm ± 0,4 mm from Reference Plane Y. The depth of each opener edge shall be at + 0,2 mm

L 264 = 3,0 mm

- 0,0 mm

from L 261 and the top shall be rounded off with a radius R 210 = 0,5 mm max. - 32 -

The length of the guide edges measured from the corresponding opener edge shall be L 265 = 7,0 mm min. The intersection of the guide edges and the opener edges shall be rounded off with a radius R 211 = 0,5 mm max. Other corners of the guide and opener edges shall be rounded off with a radius R 212 = 1,0 mm max. 8.2.13

Path for shutter opener (Figure 22 and 23) When the shutter is moved rightwards until the left opener edge is at a distance L 266 = 26,5 mm, from Reference Plane Y, the windows shall be open over L 267 = 16,5 mm min. from L 252 and over an arc of R 213 = 17,0 mm min. originating at the intersection of L 252 and L 256. The left-hand opener edge shall be at L 268 = 26,0 mm max. from Reference Plane Y, when the shutter is in its right-hand end position. When the corresponding position of the right-hand opener edge is L 269 = 75,5 mm, the windows shall be open at L 267 from L 252 and with a radius R 213 originating at the intersection of L 252 and L 256. The position of the right-hand opener edge shall be L 270 = 76,0 mm min. when the shutter is in its left-hand end position.

8.2.14

Label areas (Figure 24) The case shall have three label areas on Side A and Side B and on the bottom side, with dimensions Sides A and B L 271 = 10,0 mm ± 0,2 mm L 272 = 13,0 mm ± 0,2 mm L 273 = 76,0 mm ± 0,3 mm R 214 = 2,0 mm ± 0,2 mm Bottom side L 274 = 13,0 mm ± 0,2 mm L 275 = 76,0 mm ± 0,3 mm L 276 = 5,0 mm ± 0,2 mm L 277 = 97,0 mm ± 0,3 mm L 278 = 1,0 mm ± 0,2 mm L 279 = 6,0 mm ± 0,2 mm. The label area shall be recessed by 0,2 mm min. on all three sides. - 33 -

8.2.15

Identification mark for Side A (Figure 25) Side A shall be identified by an identification mark consisting of one small round projection provided in a concave part on the right-hand side of Side A. The position and dimensions of this identification mark shall be as follows. + 0,1 mm

R 215 = 0,5 mm

- 0,0 mm

R 216 = 18,0 mm ± 1,0 mm + 0,1 mm

L 281 = 0,5 mm

- 0,0 mm

L 282 = 7,0 mm ± 0,3 mm L 283 = 97,0mm ± 0,4 mm + 0,1 mm

L 284 = 0,6 mm 8.2.16

- 0,0 mm

O p e n i n g a n d o p e n i n g c o ve r f o r t a k i n g t h e d i s k o u t o f t h e c a s e Type 2 case shall have an opening closed by a cover. In the original condition the case contains a disk and the cover is locked in closed position. Sensor hole A1 shall be closed. In order to take out the disk, sensor hole A1 shall be opened, then the cover can be opened and the disk removed from the case. Once sensor hole A1 has been opened, it always remains open whether or not the same disk or another disk has been introduced into the case. This Ecma Standard does not specify the design of the opening and of the cover. They should be designed so as not to damage the disk. An example of a cover is shown in Annex H.

- 34 -

Y R 201

L 210

L 208

L 209

L201

R201

L211

L202

L216

D201

R202

A R 202

L 217

A L207

L 215 L 206

R203 Z

L 205 R203

R203

L 212 R203

97-0105-A

R203

204

L214

R203

L209

L211

L204

R203

L 203

204

L 213

Section A-A (Larger scale) Figure 16 - Overall dimensions - 35 -

L 214

R203

L 218

L 219

L 221 L 220

D 202

L 215 97-0106-A

Figure 17 - Reference surfaces

- 36 -

L226

L 225

Z Z L 232

L 231 L230

L 228

a201

L224

L227

R206 R205

L 229

L 223 X

R207 L 240 L 241

R207 L239 L238

L234

L 236

L233

L 235

Section B-B (Larger scale) 97-0107-A

Figure 18 - Insertion slot, detents and gripper slots

- 37 -

L 237 L234

Side B

X L 246

L 242

C D203 C

D A2

A3 D

204

L 248

L 247 L 243

D203

L 244 Section C-C (Larger scale) Writing permitted

Section C-C (Larger scale) Writing inhibited

204

L 249 Section D-D (Larger scale) Closed

Section D-D (Larger scale) Open

01-0091-A

Figure 19 - Write-inhibit hole, sensor holes and sensing areas

- 38 -

L259 L 260

L 255

L 254

R208

Side B

L258

L257 L 256 L253

R209

L 252 Y

L 254

L 255

R208

Side A

L257

L258 L

R209

256

L 252

97-0109-A

Figure 20 - Spindle and head window

- 39 -

253

R212 L 265

R212

L 263 L 262

F Z

L 264

L 265

R211

Section F-F R

210

L 261

97-0110-A

Figure 21 - Shape of the shutter

- 40 -

L 266

L 267

R213

L 256 X

L 252 L 268

97-0111-A

Figure 22 - Shutter in just right-hand open position (top view) and maximum right-hand open position (bottom view)

- 41 -

L 269

L267

R213 L256

L 252 L 270

97-0112-A

Figure 23 - Shutter in just left-hand open position (top view) and maximum left-hand open position (bottom view)

- 42 -

Side B

L 271

R 214

L 273

L 277

L 279

L 278

272

L 274

L 275

L 276

Side A

L271

R214

L 272

L 273

97-0113-A

Figure 24 - Label areas

- 43 -

L 282

L 283

Side A R216

R 215

L 281 L 284

Section G-G (Larger scale) 97-0114-A

Figure 25 - Identification mark of Side A

8.3

Dimensions of the Type 3 case The dimensions of the Type 3 case shall be measured in the test environment (see 7.1.1). The dimensions of the case in an operating environment (see 7.1.2) can be estimated from the dimensions specified in this clause. The dimensions of the case are identical with those of the Type 2 case. See 8.2. The following clauses specify different features from the Type 2 case.

8.3.1

Sensor holes The functions identified by the states of the sensor holes are specified in Table 3.

- 44 -

Table 3 – States of the sensor holes Sensor

Function

State

hole

Closed

Open

Not permitted

There may or may not be a disk within the case

Open

Active side

Not permitted

Closed

Reserved for future standardization

Closed

A3 8.3.2

O p e n i n g a n d o p e n i n g c o ve r f o r t a k i n g t h e d i s k o u t o f t h e c a s e The case shall have an opening and an opening cover for taking a disk out or putting one in. The opening cover can be opened and closed freely. A sample of an opening cover is shown in Annex H.

8.4

Dimensions of the Type 4 case The dimensions of the Type 4 case shall be measured in the test environment (see 7.1.1). The dimensions of the case in an operating environment (see 7.1.2) can be estimated from the dimensions specified in this clause. The dimensions of the case are identical with those of the Type 1 case. See 8.1. The following clauses specify different features from the Type 1 case.

8.4.1

Sensor holes The functions identified by the states of the sensor holes are specified in Table 4. Table 4 - States of the sensor holes

Sensor hole A1 A2

Closed

State Open

The original disk has The original disk has been taken not been taken out out or a disk has been put in

Closed

Reserved for future standardization

Closed

The original disk has The original disk has been taken not been taken out out or a disk has been put in

Closed / Open

Active side

Closed / Open

Not permitted

8.4.2

Function

Active side

Not permitted

Closed

Reserved for future standardization

Closed

O p e n i n g a n d o p e n i n g c o ve r f o r t a k i n g t h e d i s k o u t o f t h e c a s e Type 4 case shall have an opening closed by a cover. In the original condition the case contains a disk and the cover is locked in closed position. Sensor hole A1 and B1 shall be closed. In order to take out the disk, sensor hole A1 and B1 shall be opened, then the cover can be opened and the disk removed from the case. Once sensor hole A1 and B1 have been opened, it always remains open whether or not the same disk or another disk has been introduced into the case. This Ecma Standard does not specify the design of the opening and of the cover. They should be designed so as not to damage the disk. An example of a cover is shown in Annex H.

8.5

Dimensions of the Type 5 case The dimensions of the Type 5 case shall be measured in the test environment (see 7.1.1). The dimensions of the case in an operating environment (see 7.1.2) can be estimated from the dimensions specified in this clause. - 45 -

The dimensions of the case are identical with those of the Type 1 case. See 8.1. The following clauses specify different features from the Type 1 case. 8.5.1

Sensor holes The functions identified by the states of the sensor holes are specified in Table 5. Table 5 - States of the sensor holes Function

Sensor hole

Closed

Open

Not permitted

There may or may not be a disk within the case

Open

Active side

Not permitted

Closed

Reserved for future standardization

Closed

A3 B1

Not permitted

There may or may not be a disk within the case

Open

Active side

Not permitted

Closed

Reserved for future standardization

Closed

B3 8.5.2

States

9 9.1

Mechanical characteristics Material The case shall be constructed from any suitable materials such that it meets the requirements of this Ecma Standard.

9.2

Mass The mass of the case without the disk shall not exceed 100 g.

9.3

Edge distortion The cartridge shall meet the requirement of the edge distortion test defined in Annex B.

9.4

Compliance The case shall meet the requirement of the compliance (flexibility) test defined in Annex C.

9.5

Shutter opening force The spring force on the shutter shall be such that the force required to open the shutter does not exceed 2,0 N. It shall be sufficiently strong to close a free-sliding shutter, irrespective of the orientation of the case.

- 46 -

10 10.1

Interface between the case used as cartridge and a drive Capture cylinder (Figure 26) The capture cylinder is defined as the volume within which the spindle can expect the centre of the disk hole to be, just prior to capture, and with the cartridge constrained as specified in 9.4. The size of the cylinder defines the permissible play of the disk inside its cavity in the case. The cylinder is referred to perfectly located and perfectly sized alignment and location pins in the drive; it includes the tolerances of those dimensions of the case and the disk which are between the two pins mentioned and the centre of the disk. The bottom of the cylinder shall be parallel to, and above, Reference Plane Z at a distance L 301 = 2,1 mm min. The top of the cylinder shall be located at a distance L 302 = 5,2 mm max. from Reference Plane Z. The diameter of the cylinder shall be D 301 = 2,8 mm max. and its centre shall be given by the nominal values of L 150 and L 154 for Type 1, Type 4 and Type 5; or by L 254 and L 258 for Type 2 and or Type 3 cases, in the drive.

- 47 -

150

(= L

252

)

D 301

A L 154 (= L 256 )

L 301 L 302

97-0115-A

Section A-A (Larger scale) Figure 26 - Capture cylinder

10.2

Inner dimensions of the case (Figure 27) The inner space of the disk shall be such that the disk is not in contact with the case during operation. The inner shape of the case shall meet the following requirements. L 303 = 2,2 mm max. L 304 = 2,5 mm max. L 305 = 5,4 mm min. L 306 = 5,7 mm min.

- 48 -

measured from Reference Plane Z and R 301 = 22,0 mm max. R 302 = 60,7 mm min. from a centre given by the nominal values of L 150 and L 154 of Type 1 case, Type 4 case or Type 5 case, or L 254 and L 258 of Type 2 and Type 3 cases.

11 11.1

Orientation of the disk in the case Two-sided disk (Type 2S) in case Types 1, 4 and 5 The disk surfaces are defined as Side A and Side B. Sides A and B of the case are identical as far as the features specified in this Ecma Standard are concerned. The two-sided disk (Type 2S) has no specific orientation in the case. Therefore, references to Sides A and B of the case can be changed to B and A respectively.

11.2

One-sided disk (Type 1S) in case Types 1, 2 and 3 A one-sided disk (Type 1S) has only one functional entrance surface defined as Side A. The disk shall be oriented in the case so that when Side A of the case faces upwards, Side A of the disk faces downwards.

- 49 -

L 150 (= L252 )

B L 150 (= L 256 ) X

Y R 302 L 306

L 305

R 301

Section B-B (Larger scale) 97-0116-A

Figure 27 - Inner dimensions of the case

- 50 -

Z L 303 L 304

Section 3 – Dimensional and Mechanical characteristics of the case for 80 mm disk 12

Dimensional characteristics The dimensions of the case shall be referred to three orthogonal Reference Planes X, Y and Z. The case shall be constrained such that four reference surfaces S1 to S4 on Side B of the case lie in Reference Plane Z. The intersection of the three planes defines the centre of the location hole. The centre of the alignment hole shall lie on the intersection of Reference Planes X and Z. Refer to Annex D. A dimension of a feature referenced to one of the planes is the shortest distance from the feature to the plane. Side A of the Type 6 and the Type 8 cases are referred to the three orthogonal Reference Planes X, Y' and Z', where Y' is a plane parallel to Reference Plane Y at a nominal distance of 74,0 mm, Z' is a plane parallel to Reference Plane Z at a nominal distance of 5,4 mm.

12.1

Dimensions of the Type 6 case The dimensions of the Type 6 case shall be measured in the test environment (see 7.1.1). The dimensions of the case in an operating environment (see 7.1.2) can be estimated from the dimensions specified in this clause.

12.1.1

O ve r a l l d i m e n s i o n s ( F i g u r e 2 8 ) The total length of the case shall be L 101 = 91,0 mm ± 0,3 mm. The distance from the top of the case to Reference Plane X shall be + 0,3 mm

L 102 = 77,0 mm

- 0,2 mm

with the width L 103 = 2,0 mm min. from the left-hand and right-hand edges of the case. The distance from the bottom of the case to Reference Plane X shall be L 104 = 14,0 mm ± 0,2 mm. The total width of the case shall be L 105 = 89,0 mm ± 0,2 mm The distance from the left-hand side of the case to Reference Plane Y shall be L 106 = 7,5 mm ± 0,2 mm The distance from the right-hand side of the case to Reference Plane Y shall be L 107 = 81,5 mm ± 0,3 mm The four corners shall be rounded off with a radius of R 101 = 2,5 mm ± 0,1 mm. In the zones delimited by L 108 = 6,0 mm from the left-hand and right-hand edges of the case, there shall be the continuous guide areas running from the top to Reference Plane X of the case, with a width - 51 -

L 109 = 0,7 mm min. The thickness of the case shall be + 0,2 mm

L 110 = 5,4 mm

- 0,1 mm.

The eight long edges of the case shall be rounded off with a radius R 102 = 0,4 mm ± 0,1 mm. The flat area width of the top shall be L 111 = 0,5 mm max. 12.1.2

Location hole (Figure 28) The centre of the location hole shall coincide with the intersection of Reference Planes X, Y and Z. The diameter of the hole shall be + 0,05 mm

D 101 = 3,00 mm

- 0,00 mm

Its depth shall be L 112 = 0.8 mm min. The room below the location hole shall be free up to L 113 = 4,0 mm min. below Reference Plane Z. The diameter of the free room shall be at least equal to D 101. The lead-in edges shall be rounded off with a radius + 0,1 mm

R 103 = 0,3 mm 12.1.3

- 0,0 mm.

Alignment hole (Figure 28) The centre of the alignment hole shall lie on the intersection of the Reference Planes X and Z at a distance L 114 = 74,0 mm ± 0,2 mm from Reference Plane Y. The alignment hole shall have a substantially rectangular shape. Its dimensions shall be + 0,05 mm

L 115 = 3,00 mm

- 0,00 mm + 0,2 mm

L 116 = 3,8 mm

- 0,0 mm

Its depth shall be equal to L 112. The room below the alignment hole shall be free up to at least L 113. The dimensions of the free room shall be at least L 115 and L 116. The lead-in edges shall be rounded off with a radius R 103. 12.1.4

Reference surfaces (Figure 29) There shall be four reference surfaces S1, S2, S3 and S4 on Side B of the case. Surfaces S1 and S2 shall be rectangular with a width of L 117 = 6,0 mm min. - 52 -

with the centre located at Reference Plane X and these corners shall be rounded off with a radius of R 104 = 3,0 mm min. originating the centre of the location hole for surface S1 and the centre of the alignment hole for surface S2. Surfaces S3 and S4 shall be rectangular with dimensions L 118 = 5,7 mm max. L 119 = 79,7 mm max. from Reference Plane Y and L 120 = 64,0 mm max. L 121 = 72,0 mm min. from Reference Plane X. 12.1.5

Mis-insertion protection slots (Figure 30) The case shall have two symmetrical mis-insertion protection slots. The edge of the slots shall be at a distance L 123 = 7,0 mm ± 0,3 mm from Reference Plane X. The slope start point measured from the edge shall be L 124 = 3,5 mm ± 0,2 mm. The slope end point measured from the edge shall be L 125 = 1,0 mm ± 0,1 mm. The depth measured from the edge of the case shall be L 126 = 2,0 mm ± 0,1 mm. The inside edge corner of the slots shall be rounded off with a radius of R 105 = 0,5 mm max. The outside edge corner of the slots shall be rounded off with a radius of R 106 = 0,3 mm ± 0,1 mm.

12.1.6

Detents (Figure 30) The case shall have two semi-circular, symmetrical detents intended for autoloading. The position and dimensions of these detents shall be L 220 = 3,0 mm ± 0,1 mm originating from L 221 and L 127 = 63,5 mm ± 0,3 mm from Reference Plane X. The width of the detents shall be L 128 = 3,7 mm ± 0,1 mm centre of which shall be located at L 129 = 2,7 mm ± 0,1 mm from Reference Plane Z.

- 53 -

The outside edges of the detents shall be rounded off with a radius R 108 = 0,4 mm ± 0,1 mm. The bottom of the case shall have two symmetrical detents intended for clamping a cartridge in case of vertical use. Their dimensions shall be L 130 = 2,0 mm ± 0,1 mm L 131 = 3,7 mm ± 0,2 mm L 132 = 0,7 mm ± 0,1 mm The centre of one of these detents shall be at a distance L 133 = 5,5 mm ± 0,2 mm from Reference Plane Y. The centre of the other shall be at a distance L 134 = 68,5 mm ± 0,2 mm from Reference Plane Y. Both centres shall be at a distance L 135 = 2,7 mm ± 0,1 mm from Reference Plane Z. 12.1.7

Write-inhibit hole (Figure 31) The case shall have a write-inhibit hole on both Sides A and B. The write-inhibit hole shall have a device for opening and closing the hole. The hole on Side B of the case is the write-inhibit hole for Side A of the disk. The protected side of the disk shall be identified by an indication on the case, but the indication can be omitted when the device for opening and closing the hole for Side A of the disk can only be operated from Side A of the case. When writing and erasing on Side A of the disk are not allowed, the write-inhibit hole shall be open. It shall have a diameter D 102 = 2,5 mm min. The position of its centre on Side B shall be specified by L 136 = 11,5 mm ± 0,2 mm L 137 = 13,0 mm ± 0,2 mm The hole shall extend below Reference Plane Z by L 138 = 4,0 mm min. with a diameter equal at least to D 102. When writing and erasing of the disk are allowed, the write-inhibit hole shall be closed by the write protect device. The write protect device shall not be recessed from Reference Plane Z by + 0,2 mm

L 139 = 0,8 mm 12.1.8

- 0,1 mm

Sensor holes (Figure 31) The case shall have three sensor holes on Side B. The set of holes on Side B of the case, A1, A2 and A3 pertains to Side A of the disk. The holes shall have a diameter of D 103 = 2,5 mm min. and the positions of their centres shall be specified by L 136 and L 140 = 2,0 mm ± 0,2 mm - 54 -

L 141 = 3,0 mm ± 0,2 mm L 142 = 8,0 mm ± 0,2 mm. The room below the holes shall be free by L 143 = 4,0 mm min. Reference Plane Z. The diameter of the free room shall be at least equal to D 103. The holes shall be permitted to extend through Side A. When a hole for Side A of the disk is closed, the closure shall not be recessed from Reference Plane Z by + 0,2 mm

L 144 = 0,8 mm

- 0,1 mm

The sensor hole A1 shall indicate whether or not the disk has been taken out of the case. The sensor hole A1 shall be originally closed, and once a disk has been taken out of the case, this hole shall remain permanently open. Side A of the case shall have corresponding sensor holes B1, B2 and B3 with the diameter D 103. The functions identified by the states of the sensor holes are specified in Table 6. Table 6 - States of the sensor holes Sensor

Function

State

hole

Closed

Open

The original disk has not been taken out

The original disk has been taken out or a disk has been put in

Closed / Open

Cartridge detection

Not permitted

Closed

Reserved for future standardization

Closed

A3 B1

The original disk has not been taken out

The original disk has been taken out or a disk has been put in

Closed / Open

Cartridge detection

Not permitted

Closed

Reserved for future standardization

Closed

B3 12.1.9

S p i n d l e a n d h e a d w in d o w ( F i g u r e 3 2 ) The dimensions of the window shall be referenced to a centreline, located at a distance L 145 = 37,0 mm ± 0,1 mm from Reference Plane Y. The width of the window from the top of the case to L 146 = 40,0 mm max. shall be L 147 = 13,0 mm ± 0,1 mm and L 148 = 13,0 mm ± 0,1 mm. The top of the window shall be specified by R 109 = 40,7 mm min. originating from the intersection of L 145 and L 149 = 29,0 mm ± 0,1 mm. - 55 -

The width of the window with the projection portion shall be L 150 = 10,0 mm min. and L 151 = 10,0 mm min. The width of the window at L 149 shall be specified by + 0,2 mm

L 152 = 13,7 mm

- 0,0 mm

and + 0,2 mm

L 153 = 13,7 mm

- 0,0 mm

The bottom and the projection portion of the window shall be the arc specified by a radius R 110 = 14,0 mm min. Its centre shall be defined by the intersection of L 145 and L 149. The area bounded by R 109 and the top of the case shall be recessed from Reference Plane Z by L 154 = 1,3 mm min. over the width of the window. 12.1.10 Shutter shape (Figure 33) The case shall have a spring-loaded shutter completely covering the spindle and head windows when the case is not inside a drive. The shutter shall be free to slide in a recessed area of the case. The shutter shall not protrude beyond Reference Planes Z or Z' by more than 0,15 mm. The shutter shall have an opener slot and a pair of opener edges against which the shutter opener of the drive can push to open the shutter. The shutter can be moved toward either the left or the right corresponding to the shutter opener mechanism. The top of the shutter shall be located at + 0,3 mm

L 155 = 77,0 mm

- 0,2 mm

from Reference Plane X. The opener slot shall be defined by the dimensions L 156 = 5,0 mm ± 0,1 mm + 0,3 mm

L 157 = 2,2 mm

- 0,0 mm

L 158 = 2,0 mm ± 0,1 mm Its centre shall be specified by the intersection of two lines defined by L 159 = 37,0 mm ± 0,2 mm from Reference Plane Y and L 160 = 2,7 mm ± 0,1 mm from Reference Plane Z when the shutter is closed. The outside edge corners shall be rounded off with a radius of R 111 = 0,4 mm max. The inside edge corners shall be rounded off with a radius of R 112 = 0,4 mm max. - 56 -

The right opener edge shall be defined by the dimensions L 222 = 2,2 mm min. L 164 = 2,2 mm ± 0,2 mm Its centre shall be located at L 160. When the shutter is closed, the right-hand opener edge shall be at L 161 = 50,7 mm ± 0,3 mm from Reference Plane Y. The case shall have a pair of opener guides through which the opener edge can be pushed by the shutter opener of a drive. Its projective figure viewed from the case side shall be defined by L 164 and a width of L 162 = 2,4 mm ± 0,2 mm with the centre located at L 163 = 2,7 mm ± 0,1 mm from Reference Plane Z. The corner of the opener guides shall be rounded off with a radius of R 113 = 0,4 mm ± 0,1 mm. 12.1.11 Path for shutter opener (Figure 34) When the left-hand edge position of the opener slot is L 165 = 6,3 mm, the shutter shall be open at L 166 = 12,9 mm min. and L 167 = 13,7 mm min. from L 145. When the position of the right-hand opener edge is L 168 = 22,5 mm, the shutter shall be open at L 166 and L 167. The left-hand edge portion of the opener slot shall be L 169 = 5,9 mm max. and the position of the right-hand opener edge shall be L 170 = 22,1 mm max. when the shutter completely moves up. 12.1.12 Label areas (Figure 35) The case shall have two label areas on Side A and Side B. Their dimensions shall be L 171 = 7,1 mm ± 0,2 mm L 172 = 5,0 mm ± 0,2 mm L 173 = 8,0 mm ± 0,2 mm L 174 = 66,0 mm ± 0,3 mm R 114 = 1,0 mm ± 0,2 mm The label area shall be recessed by 0,2 mm min. - 57 -

12.1.13 Identification marks for Sides A and B (Figure 36) Side A and Side B shall be identified by an identification mark provided on a concave part on Side A and Side B, respectively. On Side A, this concave part presents a small round projection, on Side B two such projections are provided. The position and dimensions of these identification marks shall be as follows. Side A + 0,1 mm

R 115 = 0,4 mm

- 0,0 mm + 0,1 mm

L 176 = 0,4 mm

- 0,0 mm

L 177 = 10,2 mm ± 0,3 mm L 178 = 37,0 mm ± 0,4 mm + 0,1 mm

L 179 = 0,5 mm

- 0,0 mm

L 180 = 9,0 mm ± 1,0 mm L 181 = 5,0 mm ± 0,5 mm Side B + 0,1 mm

R 115 = 0,4 mm

- 0,0 mm + 0,1 mm

L 176 = 0,4 mm

- 0,0 mm

L 177 = 10,2 mm ± 0,3 mm L 178 = 37,0 mm ± 0,4 mm + 0,1 mm

L 179 = 0,5 mm

- 0,0 mm

L 180 = 9,0 mm ± 1,0 mm L 181 = 5,0 mm ± 0,5 mm L 182 = 3,0 mm ± 0,3 mm 12.1.14 Disk holder and body (Figures 37 and 38) The case shall consist of a body and a disk holder to allow the removal or replacement of the disk. In the original condition, the disk holder shall be locked in the body and the sensor holes A1 and B1 closed. When the status of the sensor holes A1 and B1 changes from closed to open, the disk holder holding a disk can be removed from the case. Once the status of the sensor holes A1 and B1 changes from closed to open, the open status is kept and cannot be changed back to the closed status. The body and the disk holder shall be formed so as not damaging the read-out side of the disk. The disk holder shall have a pair of holding arms with upper and lower flanges, a grip, a pair of lock levers with a lock portion and a pair of detents. A disk shall be supported among the holding arms and the grip. The disk shall not be removed from the disk holder by a releasing force of 0,35 N or less. The dimensions of the disk holder shall be as follows, using the three orthogonal reference planes A, B and C.

- 58 -

Arm L 183 = 22,0 mm ± 0,2 mm L 184 = 79,0 mm ± 0,2 mm L 185 = 84,8 mm ± 0,1 mm L 186 = 74,0 mm ± 0,2 mm L 187 = 19,5 mm ± 0,2 mm L 188 = 70,0 mm ± 0,2 mm L 189 = 70,0 mm min. (The upper and lower flanges shall not lie within L 189) + 0,1 mm

R 116 = 38,5 mm

- 0,0 mm + 0,1 mm

R 117 = 40,7 mm

- 0,0 mm

R 118 = 42,4 mm ± 0,1 mm L 190 = 3,7 mm ± 0,05 mm L 191 = 2,9 mm ± 0,1 mm L 192 = 3,1 mm ± 0,05 mm Grip L 193 = 43,0 mm ± 0,1 mm L 194 = 35,5 mm ± 0,1 mm + 0,0 mm

L 195 = 32,0 mm

- 0,2 mm + 0,0 mm

L 196 = 29,0 mm

- 0,2 mm + 0,0 mm

L 197 = 0,7 mm

- 0,2 mm + 0,0 mm

L 198 = 22,0 mm

- 0,2 mm + 0,0 mm

L 199 = 19,0 mm

- 0,2 mm

R 119 = 0,5 mm ± 0,1 mm R 120 = 1,2 mm ± 0,1 mm L 200 = 4,5 mm ± 0,1 mm L 201 = 3,1 mm ± 0,05 mm L 202 = 5,4 mm ± 0,05 mm + 0,2 mm

L 203 = 3,0 mm

- 0,0 mm

L 204 = 20,0 mm ± 0,1 mm L 205 = 12,0 mm ± 0,1 mm

- 59 -

+ 0,1 mm

L 206 = 0,1 mm

- 0,0 mm + 0,1 mm

L 207 = 0,5 mm

- 0,0 mm

L 208 = 1,9 mm ± 0,1 mm Lock lever L 209 = 85,0 mm ± 0,1 mm L 210 = 34,5 mm ± 0,1 mm L 211 = 1,0 mm ± 0,1 mm + 0,0 mm

L 212 = 1,0 mm

- 0,3 mm + 0,1 mm

L 213 = 1,85 mm

- 0,3 mm

L 214 = 4,0 mm ± 0,2 mm L 215 = 27,8 mm ± 0,2 mm L 216 = 36,0 mm ± 0,1 mm L 217 = 1,0 mm ± 0,1 mm Detent L 218 = 20,0 mm ± 0,1 mm R 121 = 1,5 mm ± 0,1 mm The body shall be formed to engage the lock portions and the grip of the disk holder, as an example shown in Annex J. The body shall have the mis-release protection function for the disk holder with dimensions of L 123, L 124, L 125, L 126, R 105, R 106 and L 219 = 2,7 mm min. as shown in Figure 38. The body shall be formed so as to enable to set the disk holder with its elastic deformation in the condition of entering the disk in the body.

- 60 -

R101

L102

L 108

L 103

L 111

L 109

R 102

L109

L101

X D 101

L104

L 115

A R 101

L 116

L 114

L 106

L 107 L 105

R 102

R 102 R 103

L 110

R 102

R103

L 113

L 112

Section A-A

01-0049-A

Figure 28 - Overall dimensions

- 61 -

R 102

L 112

L 113

L 118 L 119

L 121 L 120

R104

L 117

01-0050-A

Figure 29 - Reference surfaces

- 62 -

L 129 L 128

R108 L 220

R107

L 221

L 127

R106 R105 L 123

L 125 L 124

L 126

L 134

Z A

L 133

L 131

L 130 L 132

Section A-A 01-0052-A

Figure 30 - Mis-insertion protection slots and detents

- 63 -

L 135

Side B

L 136

A1 D 103 L 140 L 141 L 142 L 137 X

A2 A3

D 102 (write-inhibit hole) B

Side A

Y’

L 136 B1 D 103 L 140 L 141 L 142 L 137 Z

B2 B3

D 102 (write-inhibit hole) B

D 102 L 139

L138

D 102

Section B-B Writing inhibited

Section B-B Writing permitted Z

L 144

L143

D 103

Section C-C Open

Section C-C Closed 01-0053-A

Figure 31 - Write-inhibit hole and sensor holes

- 64 -

L 154

Z L 147

L 148

R109

L 150

L 151

R110 L 146

L 149

L 152

L 153

L 145 01-0054-A

Figure 32 - Spindle and head window

- 65 -

L 161 L 160

L 222

L 157 L 159

L 156 Y

L 158 Z

R111

R113

L 164

R112

L 155

01-0055-A

Figure 33 - Shape of the shutter

- 66 -

L 163 L 162

L 168

L 165

L 150

L 166 L 167

L 170

L 169

01-0056-A

L45 Figure 34 - Shutter in just open position (top view) and maximum open position (bottom view)

- 67 -

L171 X

R114 L172 L173

L174

01-0057-A

Figure 35 - Label areas

- 68 -

Y’

X L178

L178 L177

L177

Side B

Side A

L180

R115

L180

L 176

R115

L179

L 182 Section E-E

Section C-C

L181

Section D-D

Section F-F 01-0058-A

Figure 36 - Identification marks of Side A and B

- 69 -

176

L179

Side B L 185 L 184 L 186 L 188 C

L 191

L183 L187

L 190

R118 R116 R120

L 213

L 194

L 197

L 210

L 211

R119

L 216 L 193 L 213

L 197 L 203

L 203

L 215 L 218 L 214

R121

R117

D L192

L 204 L 196 L 195 L 189 L 209

L 212

L 206

L 212

L 207

L 217 L 208

L 201

L 202

Section C-C

L 198

L 200 Section D-D

L 199 L 203

L 205

L197

R120

L 203

R119

L197

01-0059-A

Figure 37 - Disk holder shape

- 70 -

L 201

Side B

L 123 L 219

Side A

X’

R106 R105

L123

L125 L124

L 126

01-0060-A

Figure 38 - Mis-release protection function of the body of the case

- 71 -

12.2

Dimensions of the Type 7 case The dimensions of the Type 7 case shall be measured in the test environment (see 7.1.1). The dimensions of the case in an operating environment (see 7.1.2) can be estimated from the dimensions specified in this clause.

12.2.1

O ve r a l l d i m e n s i o n s ( F i g u r e 3 9 ) The total length of the case shall be L 301 = 91,0 mm ± 0,3 mm. The distance from the top of the case to Reference Plane X shall be + 0,3 mm

L 302 = 77,0 mm

- 0,2 mm

with the width L 303 = 2,0 mm min. from the left-hand and right-hand edges of the case. The distance from the bottom of the case to Reference Plane X shall be L 304 = 14,0 mm ± 0,2 mm. The total width of the case shall be L 305 = 89,0 mm ± 0,2 mm. The distance from the left-hand side of the case to Reference Plane Y shall be L 306 = 7,5 mm ± 0,2 mm. The distance from the right-hand side of the case to Reference Plane Y shall be L 307 = 81,5 mm ± 0,3 mm. The four corners shall be rounded off with a radius R 301 = 2,5 mm ± 0,1 mm In the zones delimited by L 308 = 6,0 mm from the left-hand and right-hand edges of the case, there shall be the continuous guide areas running from the top to Reference Plane X of the case, with a width L 309 = 0,7 mm min. The thickness of the case shall be + 0,2 mm

L 310 = 5,4 mm

- 0,1 mm.

The eight long edges of the case shall be rounded off with a radius R 302 = 0,4 mm ± 0,1 mm. The flat area width of the top shall be L 311 = 0,5 mm max. 12.2.2

Location hole (Figure 40) The centre of the location hole shall coincide with the intersection of Reference Planes X, Y and Z. The diameter of the hole shall be + 0,05 mm

D 301 = 3,00 mm

- 0,00 mm - 72 -

Its depth shall be L 312 = 0,8 mm min. The room below the location hole shall be free by L 313 = 4,0 mm min. below Reference Plane Z. The diameter of the free room shall be at least equal to D 301. The lead-in edges shall be rounded off with a radius + 0,1 mm

R 303 = 0,3 mm 12.2.3

- 0,0 mm

Alignment hole (Figure 40) The centre of the alignment hole shall lie on the intersection of the Reference Planes X and Z at a distance L 314 = 74,0 mm ± 0,2 mm from Reference Plane Y. The alignment hole shall have a substantially rectangular shape. Its dimensions shall be + 0,05 mm

L 315 = 3,00 mm

- 0,00 mm + 0,2 mm

L 316 = 3,8 mm

- 0,0 mm

Its depth shall be equal to L 312. The room below the alignment hole shall be free by at least L 313. The dimensions of the free room shall be at least L 315 and L 316. The lead-in edges shall be rounded off with a radius R 303. 12.2.4

Reference surfaces (Figure 40) There shall be four reference surfaces S1, S2, S3 and S4 on Side B of the case. Surfaces S1 and S2 shall be rectangular with a width L 317 = 6,0 mm min. with the centre located at reference plane X and these corners shall be rounded off with a radius R 304 = 3,0 mm min. originating the centre of the location hole for surface S1 and the centre of the alignment hole for surface S2. Surfaces S3 and S4 shall be rectangular with dimensions L 318 = 5,7 mm max. L 319 = 79,7 mm max. from Reference Plane Y and L 320 = 64,0 mm max. L 321 = 72,0 mm min. from Reference Plane X.

12.2.5

Mis-insertion protection slots (Figure 41) The case shall have three mis-insertion protection slots, two of them located symmetrically at the bottom side of the case and the other located at the top right side of the case. - 73 -

The edge of the slots at the bottom side shall be at a distance L 323 = 7,0 mm ± 0,3 mm from Reference Plane X. The slope start point measured from the edge shall be L 324 = 3,5 mm ± 0,2 mm. The slope end point measured from the edge shall be L 325 = 1,0 mm ± 0,1 mm. The depth measured from the edge of the case shall be L 326 = 2,0 mm ± 0,1 mm. The inside edge corner of the slots shall be rounded off with a radius R 305 = 0,5 mm max. The outside edge corner of the slots shall be rounded off with a radius R 306 = 0,3 mm ± 0,1 mm. The edge of the slot at the top right side shall be at a distance L 327 = 56,0 mm ± 0,3 mm from Reference Plane X. It shall be defined by dimensions of L 324, L 325, L 326, R 305, R 306 and a width L 328 = 4,5 mm ± 0,2 mm from Reference Plane Z. 12.2.6

Detents (Figure 41) The case shall have two semi-circular, symmetrical detents intended for autoloading. The positions and dimensions of these detents shall be L 427 = 3,0 mm ± 0,2 mm L 428 = 0,5 mm ± 0,1 mm R 307 = 1,5 mm ± 0,1 mm originating at L 329 = 63,5 mm ± 0,3 mm from Reference Plane X. The width of the detents shall be L 330 = 3,7 mm ± 0,1 mm the centre of which shall be located at L 331 = 2,7 mm ± 0,1 mm from Reference Plane Z. The outside edges of the detents shall be rounded off with a radius R 308 = 0,4 mm ± 0,1 mm. The bottom of the case shall have two symmetrical detents intended for clamping a cartridge in case of vertical use. Their dimensions shall be L 332 = 2,0 mm ± 0,1 mm L 333 = 3,7 mm ± 0,2 mm L 334 = 0,7 mm ± 0,1 mm - 74 -

The centre of one of these detents shall be at a distance L 335 = 5,5 mm ± 0,2 mm from Reference Plane Y. The centre of the other shall be at a distance L 336 = 68,5 mm ± 0,2 mm from Reference Plane Y. Both centres shall be at a distance L 337 = 2,7 mm ± 0,1 mm from Reference Plane Z. 12.2.7

Write-inhibit hole (Figure 42) The case shall have a write-inhibit hole on Side B. The write-inhibit hole shall have a device for opening and closing the hole. When writing and erasing on Side A of the disk are not allowed, the write-inhibit hole shall be open. It shall have a diameter D 302 = 2,5 mm min. The position of its centre on Side B shall be specified by L 338 = 11,5mm ± 0,2 mm L 339 = 13,0 mm ± 0,2 mm The hole shall extend below Reference Plane Z by L 340 = 4,0 mm min. with a diameter equal at least to D 302. When writing and erasing of the disk are allowed, the write-inhibit hole shall be closed by the write protect device. The write protect device shall not be recessed from Reference Plane Z by + 0,2 mm

L 341 = 0,8 mm 12.2.8

- 0,1 mm

Sensor holes (Figure 42) The case shall have three sensor holes on Side B. The set of holes on Side B of the case, A1, A2 and A3 pertains to Side A of the disk. The holes shall have a diameter of D 303 = 2,5 mm min. and the positions of their centres shall be specified by L 338 and L 342 = 2,0 mm ± 0,2 mm L 343 = 3,0 mm ± 0,2 mm L 344 = 8,0 mm ± 0,2 mm. The room below the holes shall be free by L 345 = 4,0 mm min. above Reference Plane Z. The diameter of the free room shall be at least equal to D 303. The holes shall be permitted to extend through Side A. When a hole for Side A of the disk is closed, the closure shall not be recessed from Reference Plane Z by

- 75 -

+ 0,2 mm

L 346 = 0,8 mm

- 0,1 mm

The sensor hole A1 shall indicate whether a disk has been taken out once or not. Originally, the sensor hole A1 shall be closed and once a disk has been taken out of the case, this hole shall be opened and never closed again. The functions identified by the states of the sensor holes are specified in Table 7. Table 7 - Use of the sensor holes Sensor hole

State

Closed

Open

The original disk has not been taken out

The original disk has been taken out, or a disk has been put in

Closed / Open

Cartridge detection

Not permitted

Closed

Reserved for future standardization

Closed

A3 12.2.9

Function

S p i n d l e a n d h e a d w in d o w ( F i g u r e 4 3 ) The dimensions of the window shall be referenced to a centreline, located at a distance L 347 = 37,0 mm ± 0,1 mm from Reference Plane Y. The width of the window from the top of the case to L 348 = 40,0 mm max. shall be L 349 = 13,0 mm ± 0,1 mm and L 350 = 13,0 mm ± 0,1 mm. The top of the window shall be specified by R 309 = 40,7 mm min. originating from L 347 and L 351 = 29,0 mm ± 0,1 mm. The width of the window with the projection portion shall be given by L 352 = 10,0 mm min. and L 353 = 10,0 mm min. The width of the window at L 351 shall be given by + 0,2 mm

L 354 = 13,7 mm

- 0,0 mm

and + 0,2 mm

L 355 = 13,7 mm

- 0,0 mm.

The bottom and the projection portion of the window shall be the arc specified by a radius R 310 = 14,0 mm min. and its centre shall be defined by the intersection of L 347 and L 351. - 76 -

The area bounded by R 309 and top of the case shall be recessed from Reference Plane Z by L 356 = 1,3 mm min. L 357 = 4,1 mm max. over the width of the window. 12.2.10 Shutter shape (Figure 44) The case shall have a spring-loaded shutter completely covering the spindle and head windows when the case is not inside a drive. The shutter shall be free to slide in a recessed area of the case. The shutter shall not protrude beyond Reference Planes Z or the surface of Side A by more than 0,15 mm. The shutter shall have an opener slot and an opener edge against which the shutter opener of the drive can push to open the shutter. The shutter can be moved toward the left corresponding to the shutter opener mechanism. The top of the shutter shall be located at + 0,3 mm

L 358 = 77,0 mm

- 0,2 mm

from Reference Plane X. The opener slot shall be defined by the dimensions L 359 = 5,0 mm ± 0,1 mm + 0,3 mm

L 360 = 2,2 mm

- 0,0 mm.

L 361 = 2,0 mm ± 0,1 mm and its centre shall be defined by the intersection of L 362 = 37,0 mm ± 0,2 mm from Reference Plane Y and L 363 = 2,7 mm ± 0,1 mm from Reference Plane Z when the shutter is closed. The outside edge corners shall be rounded off with a radius R 311 = 0,4 mm max. The inside edge corners shall be rounded off with a radius R 312 = 0,4 mm max. The opener edge shall be defined by the dimensions L 429 = 2,2 mm min. L 367 = 2,2 mm ± 0,2 mm and its centre shall be located at L 363. When the shutter is closed, the opener edge shall be at L 364 = 50,7 mm ± 0,3 mm from Reference Plane Y. The case shall have an opener guide through which the opener edge can be pushed by the shutter opener of a drive. In projective figure viewed from the case side shall be defined by L 367 and a width of L 365 = 2,4 mm ± 0,2 mm - 77 -

with the centre located at L 366 = 2,7 mm ± 0,1 mm from Reference Plane Z. The corner of the opener guide shall be rounded off with a radius R 313 = 0,4 mm ± 0,1 mm. 12.2.11 Path for shutter opener (Figure 45) When the left-hand edge position of the opener slot is L 368 = 6,3 mm, the shutter shall be open at L 369 = 12,9 mm min. and L 370 = 13,7 mm min. from L 347. When the position of the opener edge is L 371 = 22,5 mm, the shutter shall be open at L 369 and L 370. The left-hand edge position of the opener slot shall be L 372 = 5,9 mm max. and the position of the opener edge shall be L 373 = 22,1 mm max. when the shutter completely moves up. 12.2.12 Label areas (Figure 46) The case shall have two label areas on Side A. Their dimensions shall be L 374 = 7,1 mm ± 0,2 mm L 375 = 5,0 mm ± 0,2 mm L 376 = 8,0 mm ± 0,2 mm L 377 = 66,0 mm ± 0,3 mm L 378 = 14,0 mm ± 0,2 mm L 379 = 72,0 mm ± 0,3 mm L 380 = 77,0 mm ± 0,3 mm L 381 = 55,0 mm ± 0,3 mm R 314 = 1,0 mm ± 0,2 mm The label areas shall be recessed by 0,2 mm min. 12.2.13 Identification marks for Sides A and B (Figure 47) Side A and Side B shall be identified by an identification mark provided on a concave part on Side A and Side B, respectively. On Side A, this concave part presents a small round projection, on Side B two such projections are provided. The position and dimensions of these identification marks shall be as follows. Side A + 0,1 mm

R 315 = 0,4 mm

- 0,0 mm - 78 -

+ 0,1 mm

L 383 = 0,4 mm

- 0,0 mm

L 384 = 10,2 mm ± 0,3 mm L 385 = 37,0 mm ± 0,4 mm + 0,1 mm

L 386 = 0,5 mm

- 0,0 mm

L 387 = 9,0 mm ± 1,0 mm L 388 = 5,0 mm ± 0,5 mm Side B + 0,1 mm

R 315 = 0,4 mm

- 0,0 mm + 0,1 mm

L 383 = 0,4 mm

- 0,0 mm

L 384 = 10,2 mm ± 0,3 mm L 385 = 37,0 mm ± 0,4 mm + 0,1 mm

L 386 = 0,5 mm

- 0,0 mm

L 387 = 9,0 mm ± 1,0 mm L 388 = 5,0 mm ± 0,5 mm L 389 = 3,0 mm ± 0,3 mm 12.2.14 Disk holder and body (Figure 48) The case shall consist of a body and a disk holder to allow the removal or replacement of the disk. In the original condition, the disk holder shall be locked in the body and the sensor holes A1 closed. When the status of the sensor holes A1 changes from closed to open, the disk holder holding a disk can be removed from the case. Once the status of the sensor holes A1 changes from closed to open, the open status is kept and cannot be changed back to the closed status. The body and the disk holder shall be formed so as not damaging the read-out side of the disk. The disk holder shall have a pair of holding arms with upper and lower flanges, a grip, a pair of lock levers with a lock portion and a pair of detents. A disk shall be supported among the holding arms and the grip. The disk shall not be removed from the disk holder by a releasing force of 0,35 N or less. The dimensions of the disk holder shall be as follows, using the three orthogonal reference plane A, B and C. Arm L 390 = 22,0 mm ± 0,2 mm L 391 = 79,0 mm ± 0,2 mm L 392 = 84,8 mm ± 0,1 mm L 393 = 74,0 mm ± 0,2 mm L 394 = 19,5 mm ± 0,2 mm L 395 = 70,0 mm ± 0,2 mm L 396 = 70,0 mm min. (The upper and lower flanges shall not lie inside L 396) - 79 -

+ 0,1 mm

R 316 = 38,5 mm

- 0,0 mm + 0,1 mm

R 317 = 40,7 mm

- 0,0 mm

R 318 = 42,4 mm ± 0,1 mm L 397 = 3,7 mm ± 0,05 mm L 398 = 2,9 mm ± 0,1 mm L 399 = 3,1 mm ± 0,05 mm Grip L 400 = 43,0 mm ± 0,1 mm L 401 = 35,5 mm ± 0,1 mm + 0,0 mm

L 402 = 32,0 mm

- 0,2 mm + 0,0 mm

L 403 = 29,0 mm

- 0,2 mm + 0,0 mm

L 404 = 0,7 mm

- 0,2 mm + 0,0 mm

L 405 = 22,0 mm

- 0,2 mm + 0,0 mm

L 406 = 19,0 mm

- 0,2 mm

R 319 = 0,5 mm ± 0,1 mm R 320 = 1,2 mm ± 0,1 mm L 407 = 4,5 mm ± 0,1 mm L 408 = 3,1 mm ± 0,05 mm L 409 = 5,4 mm ± 0,05 mm + 0,2 mm

L 410 = 3,0 mm

- 0,0 mm

L 411 = 20,0 mm ± 0,1 mm L 412 = 12,0 mm ± 0,1 mm + 0,1 mm

L 413 = 0,1 mm

- 0,0 mm + 0,1 mm

L 414 = 0,5 mm

- 0,0 mm

L 415 = 1,9 mm ± 0,1 mm Lock lever L 416 = 85,0 mm ± 0,1 mm L 417 = 34,5 mm ± 0,1 mm L 418 = 1,0 mm ± 0,1 mm - 80 -

+ 0,0 mm

L 419 = 1,0 mm

- 0,3 mm + 0,1 mm

L 420 = 1,85 mm

- 0,3 mm

L 421 = 4,0 mm ± 0,2 mm L 422 = 27,8 mm ± 0,2 mm L 423 = 36,0 mm ± 0,1 mm L 424 = 1,0 mm ± 0,1 mm Detent L 425 = 20,0 mm ± 0,1 mm R 321 = 1,5 mm ± 0,1 mm The body shall be formed to engage the lock portions and the grip of the disk holder, as an example shown in Annex J. The body shall have the mis-release protection function for the disk holder with dimensions of L 323, L 324, L 325, L 326, R 305, R 306 and L 426 = 2,7 mm min. as shown in Figure 49. The body shall be formed so as to enable to set the disk holder with its elastic deformation in the condition of entering the disk in the body.

- 81 -

R301

L 302

L 308

L 303

L 311

L 309

R 302

L309

L 301

X D 301

L304

L 315

A R 301

L314

L 306

L 316

L 307 L 305

R 302

R303

R 303

L 310

L 313 01-0061-A

R 302

L 312

Section A-A

Figure 39 - Overall dimensions

- 82 -

R 302

L 312

L 313

L 318 L 319

L 321 L 320

R304

L 317

L 317 01-0062-A

Figure 40 - Reference surfaces

- 83 -

L 331 L 330

R308 L 427

L 325

R307

L 324

L 428

R305

L 328

R306 L 326

L 329

L 327

R306 R305 L 323

L 325 L 324

L 326

L 336

Z A

L 335

L 333

A L 332 L 334

Section A-A 01-0063-A

Figure 41 - Mis-insertion protection slot and detents

- 84 -

L 337

Side B

L 338

A2 A3

D 303

L 342 L 343 L 344 L 339

D 302 (write-inhibit hole) B

D 302 L 341

L340

D 302

Section B-B Writing inhibited

Section B-B Writing permitted Z

L 346

L345

D 303

Section C-C

Section C-C Closed 01-0064-A

Figure 42 - Write-inhibit hole and sensor holes

- 85 -

L 161 L 160

L 222

L 157 L 159

L 156 Y L 158 Z

R111

R113

L 164

R112

L 155

01-0055-A

Figure 43 - Spindle and head window

- 86 -

L 163 L 162

L 364 L 363

L 429

L 360 L 362

L 359 Y

L 361 R311

R313 R312

L 358

01-0066-A

Figure 44 - Shape of the shutter

- 87 -

L 366 L 365

L 367

L 371

L 368

L 150

L 369 L 370

L 373

L 372

L 347 01-0067-A

Figure 45 - Shutter in just open position (top view) and maximum open position (bottom view)

- 88 -

L 380 L 381

R314

Side A L 379

L 374 X

L378 R314 L 375 L377 01-0068-A

Figure 46 - Label areas

- 89 -

L376

L384

Side B

Side A

L387

R315

L385

L387

L 383

R315

L386

L 389 Section E-E

Section C-C

L388

Section D-D

Section F-F 01-0069-A

Figure 47 - Identification mark of Side A and B

- 90 -

L 383

L386

Side B L 392

L 391 L 393 L 395 C

L 398

L390 L394

L 397

R318 R316 R320

L 420

L 401

L 404

L 417

L 418

R319

L 423 L 400 L 420

L 404 L 410

L 410

L 422 L 425 L 421

R321

R317

L399

L 411 L 403 L 402 L 396 L 416

L 419

L 413

L 419

L 414

L 424 L 415 L 409

L 408

L 407 L 405

Section C-C

Section D-D

L 406 L 410

L 412

L 410 L404

01-0070-A

R320

R319

L404

Figure 48 - Disk holder shape - 91 -

L 408

Side B

L 323 L 426

Side A

R306 R305 L323

L325 L324

01-0071-A

L 326

Figure 49 - Mis-release protection function of body of the case

- 92 -

12.3

Dimensions of the Type 8 case The dimensions of the Type 8 case shall be measured in the test environment (see 7.1.1). The dimensions of the case in an operating environment (see 7.1.2) can be estimated from the dimensions specified in this clause. The dimensions of the case are identical with those of the Type 6 case. See 12.1. The following clauses specify different features from the Type 6 case.

12.3.1

Sensor holes The functions identified by the states of the sensor holes are specified in Table 8. Table 8 - Use of the sensor holes

Sensor

Function

State

hole

Closed

Open

Not permitted

There may or may not be a disk within the case

Open

Cartridge detection

Not permitted

Closed

Reserved for future standardization

Closed

A3 B1

Not permitted

There may or may not be a disk within the case

Open

Cartridge detection

Not permitted

Closed

Reserved for future standardization

Closed

B3 12.3.2

12.4

Disk holder and body The case shall have a body and a disk holder to allow the insertion or removal of a disk. The disk holder can be taken out of and set in the body freely.

Dimensions of the Type 9 case The dimensions of the Type 9 case shall be measured in the test environment (see 7.1.1). The dimensions of the case in an operating environment (see 7.1.2) can be estimated from the dimensions specified in this clause. The dimensions of the case are identical with those of the Type 7 case. See 12.2. The following clauses specify different features from the Type 7 case.

12.4.1

Sensor holes The functions identified by the states of the sensor holes are specified in Table 9. Table 9 - Use of the sensor holes

Sensor

Function

State

hole

Closed

Open

Not permitted

There may or may not be a disk within the case

Open

Cartridge detection

Not permitted

Closed

Reserved for future standardization

Closed

A3 12.4.2

Disk holder and body The case shall have a body and a disk holder to allow the insertion or removal of a disk. The disk holder can be taken out of and set in the body freely.

- 93 -

13 13.1

Mechanical characteristics Material The case shall be constructed from any suitable materials such that it meets the requirements of this Standard.

13.2

Mass The mass of the case without the disk shall not exceed 40 g.

13.3

Edge distortion The cartridge shall meet the requirement of the edge distortion test defined in Annex E.

13.4

Compliance The case shall meet the requirement of the compliance (flexibility) test defined in Annex F.

13.5

Shutter opening force The spring force on the shutter shall be such that the force required to open the shutter does not exceed 1,75 N while the vertical force of 2,5 N is applied to the shutter top surface (see Annex G). It shall be sufficiently strong to close a free-sliding shutter, irrespective of the orientation of the case.

14 14.1

Interface between the case used as cartridge and a drive Capture cylinder (Figure 50) The capture cylinder is defined as the volume within which the spindle can expect the centre of the disk hole to be, just prior to capture, and with the cartridge constrained as specified in 13.4. The size of the cylinder defines the permissible play of the disk inside its cavity in the case. The cylinder is referred to perfectly located and perfectly sized alignment and location pins in the drive; it includes the tolerances of those dimensions of the case and the disk which are between the two pins mentioned and the centre of the disk. The bottom of the cylinder shall be parallel to Reference Plane Z, and shall be located at a distance L 501 = 1,1 mm min. above Reference Plane Z. The top of the cylinder is located at a distance L 502 = 3,6 mm max. from Reference Plane Z. The diameter of the cylinder shall be D 501 = 2,8 mm max. and its centre shall be given by the nominal values of L 145 and L 149 of Type 6 case or Type 8 case, or L 347 and L 351 of Type 7 case or Type 9 cases, in the drive.

14.2

Inner dimensions of the case (Figure 51) The inner space of the disk shall be such that the disk is not in contact with the case during operation. The inner shape of the case shall meet the following requirements. L 503 = 1,7 mm max. L 504 = 3,9 mm min. measured from Reference Plane Z and + 0,1 mm

L 505 = 0,3 mm

- 0,0 mm

- 94 -

+ 0,1 mm

L 506 = 0,3 mm

- 0,0 mm

from the surfaces of L 503 and L 504 respectively and R 501 = 15,5 mm max. R 502 = 40,7 mm min. from a centre given by the nominal values of L 145 and L 149 of Type 6 case or Type 8 case, or L 347 and L 351 of Type 7 or Type 9 cases.

15 15.1

Orientation of the disk in the case Two-sided disk (Type 2S) in case Types 6 and 8 The disk surfaces are defined as Side A and Side B. Sides A and B of the case are identical as far as the features specified in this Standard are concerned. The two-sided disk (Type 2S) has no specific orientation in the case. Therefore, references to Sides A and B of the case can be changed to B and A respectively.

15.2

One-sided disk (Type 1S) in case Types 7 and 9 A one-sided disk (Type 1S) has only one functional entrance surface defined as Side A. The disk shall be oriented in the case so that when Side A of the case faces upwards, Side A of the disk faces downwards.

- 95 -

D501

Y Z L 502 L 501

01-0072-A

Figure 50 - Capture cylinder

- 96 -

L 502 Z L 503

L 505

L 501

Section A-A 01-0073-A

Figure 51 - Inner dimensions of the case

- 97 -

L 504

L 506

- 98 -

Annex A (normative)

Position of the case for 120 mm disk relative to the Reference Planes

This Annex shows the position of the case for 120 mm disk relative to the Reference Planes, as specified in 8.

Case Side B

X Alignment hole

S1 S2 Y

Location hole 97-0117-A

Figure A.1 - Position of the case

- 99 -

- 100 -

Annex B (normative)

Edge distortion test of the case for 120 mm disk

The distortion test checks if the case is free from unacceptable distortions and protrusions along its edges. The test is made by causing the cartridge to pass through the vertical slot of a gauge.

B.1 Test gauge specification The gauge shall be made of a suitable material, e.g. of chrome-plated carbon steel. The inner surfaces shall be polished to a surface finish of 5 µm peak-to-peak. The dimensions shall be as follows (Figure B.1): L a = 136,0 mm min. L b = 125,0 mm ± 0,1mm L c = 8,0 mm ± 0,1mm L d = 8,30 mm ± 0,02mm L e = 8,8 mm min.

B.2 Requirements When the cartridge is inserted vertically into the gauge, a vertical force of 1,5 N max. (without the cartridge weight) applied to the centre of the top edge of the cartridge shall cause the cartridge to pass through the gauge.

- 101 -

1,5 N max.

Ld L

01-0092-A

Figure B.1 - Distortion gauge

- 102 -

Annex C (normative)

Compliance test of the case for 120 mm disk

The compliance test checks the flatness and flexibility of the case by forcing the four reference surfaces of the case into a plane. The test is made by placing the cartridge on the supports of a gauge and applying forces on the cartridge opposite to the supports.

C.1 Test gauge specification The test gauge consists of a base plate on which four posts P1, P2, P3 and P4 are fixed so as to correspond to the four surfaces S1, S2, S3 and S4, respectively (Figure C.1). The location of the four reference surfaces S1, S2, S3 and S4 is defined in 8.1.4 (Figure 4) or 8.2.4 (Figure 14). The dimensions are as follows (Figure C.2): Posts P1 and P2 D a = 6,50 mm

± 0,01 mm + 0,02 mm

D b = 3,90 mm

- 0,00 mm

L f = 0,5 mm ± 0,1 mm L g = 3,0 mm

± 0,1 mm

The top area of posts P 1 and P2 has a chamfer. Posts P3 and P4 D c = 5,00 mm ± 0,01 mm After assembly, both the upper annular surfaces with outer diameter D a of the two posts P1 and P2 and the upper surfaces of the two posts P3 and P4 shall lie between two horizontal planes spaced 0,01 mm apart. Positions of four posts P 1, P2, P3 and P4 Each centre of posts P 2, P3 and P4 shall be located at L h = 102,0 mm

± 0,1 mm

L i = 11,0 mm

± 0,1 mm

L j = 113,0 mm

± 0,1 mm

L k = 90,0 mm

± 0,2 mm

from the centre of the post P 1. The cartridge shall be placed with its reference surfaces onto the posts of the gauge placed horizontally. A vertical downward force of 1,0 N shall be exerted on the cartridge opposite each of the four posts.

C.2 Requirements Under the conditions of C.1, three of the four surfaces S1 to S4 shall be in contact with the surface of their respective posts, and any gap between the remaining surface S and the surface of its post shall not exceed 0,1 mm. - 103 -

1,0 N 1,0 N

1,0 N

P3 P2

Li P4

01-0093-A

Figure C.1 - Compliance gauge

Z Dc

P1,2

P3,4

97-0120-A

Figure C.2 - Detail of post

- 104 -

Annex D (normative)

Position of the case for 80 mm disk relative to the Reference Planes

This Annex shows the position of the case for 80 mm disk relative to the Reference Planes, as specified in 12.

Z S3

Location hole

Alignment hole 01-0074-A

Figure D.1 - Position of the case

- 105 -

- 106 -

Annex E (normative)

Edge distortion test of the case for 80 mm disk

The distortion test checks if the case is free from unacceptable distortions and protrusions along its edges. The test is made by causing the cartridge to pass through the vertical slot of a gauge.

E.1 Test gauge specification The gauge shall be made of a suitable material, e.g. of chrome-plated carbon steel. The inner surfaces shall be polished to a surface finish of 5 µm peak to peak. The dimensions shall be as follows (Figure E.1). L a = 92,0 mm min. L b = 89,6 mm ± 0,1 mm L c = 6,0 mm ± 0,1 mm L d = 5,70 mm ± 0,02 mm L e = 6,2 mm min.

E.2 Requirements When the cartridge is inserted vertically into the gauge, a vertical force of 0,8 N max. (without the cartridge weight) applied to the center of the top edge of the cartridge shall cause the cartridge to pass through the gauge.

- 107 -

0,8 N max.

Ld L

01-0075-A

Figure E.1 - Distortion gauge

- 108 -

Annex F (normative)

Compliance test of the case for 80 mm disk

F.1 Test gauge specification The test gauge consists of a base plate on which four posts P1, P2, P3 and P4 are fixed so as to correspond to the four surfaces S1, S2, S3 and S4, respectively (Figure F.1). The location of the four reference surfaces S1, S2, S3 and S4 is defined in 12.1.4 (Figure 26) or 12.2.4 (Figure 37). The dimensions are as follows (Figure F.2): Posts P1 and P2 Da = 5,50 mm ± 0,01 mm +0,02 mm

Db = 2,90mm

- 0,00 mm

Lf = 0,5 mm ± 0,1 mm Lg = 3,0 mm ± 0,1 mm The top area of posts P 1 and P2 has a chamfer. Posts P3 and P4 D c = 4,00 mm ± 0,01 mm After assembly, both the upper annular surfaces with outer diameter D a of the two posts P1 and P2 and the upper surfaces of the two posts P3 and P4 shall lie between two horizontal planes spaced 0,01 mm apart. Positions of four posts P 1, P2, P3 and P4: Each centre of posts P 2, P3 and P4 shall be located at L h = 74,0 mm ± 0,1 mm L i = 6,5 mm ± 0,1 mm L j = 80,5 mm ± 0,1 mm L k = 66,5 mm ± 0,2 mm from the centre of the post P 1. The cartridge shall be placed with its reference surfaces onto the posts of the horizontal gauge. A vertical downward force of 0,4 N shall be exerted on the cartridge opposite each of the four posts.

F.2 Requirements Under the conditions of F.1, three of the four surfaces S1 to S4 shall be in contact with the annular surfaces of their respective posts, and any gap between the remaining surface S and the annular surface of its post shall not exceed 0,1 mm.

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0,4 N

0,4 N 0,4 N

0,4 N

Li Lj

P1 P4 Lh

01-0080-A

Figure F.1 - Compliance gauge

Db Lg

P3,4

P1,2

01-0079-A

Figure F.2 - Detail of posts

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Annex G (normative)

Shutter opening force test of the case for 80 mm disk

Shutter opening direction

2,5 N

01-0076-A

Figure G.1 - Measuring method of shutter opening force

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- 112 -

Annex H (informative)

Examples of an opening cover for a Type 2 case, a Type 3 case, a Type 4 case or a Type 5 case

Cover closed

Cover open 97-0121-A

Figure H.1 - First example of an opening cover

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Hinge Area Shutter

Cover closed

Hinge Area Shutter

Cover open

97-0130-A

Figure H.2 - Second example of an opening cover

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Annex J (informative)

Connection between disk holder and body of the case for 80 mm disk

Body of the case

Lock portion of disk holder 01-0077-A

Figure J.1 - Connection between lock portion of disk holder and body

Body of the case

Grip of disk holder 01-0078-A

Figure J.2 - Connection between grip of disk holder and body

- 115 -

- 116 -

Annex K (informative)

Transportation K.1 General As transportation occurs under a wide range of temperature and humidity variations, for differing periods, by many methods of transport and in all parts of the world it is not possible to specify conditions for transportation or for packaging.

K.2 Packaging The form of packaging should be agreed between sender and recipient or, in the absence of such agreement, is the responsibility of the sender. It should take account of the following hazards.

K.2.1

Temperature and Humidity Insulation and wrapping should be designed to maintain the conditions for storage over the estimated period of transportation.

K.2.2

Impact loads and vibration Avoid mechanical loads that would distort the shape of the case or cartridge. Avoid dropping the case or cartridge. Cases or cartridges should be packed in a rigid box containing adequate shock-absorbent material. The final box should have a clean interior and a construction that provides sealing to prevent the ingress of dirt and moisture.

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ECMA-331 — Cases for 120 mm and 80 mm DVD-RAM disks (June 2004)

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