ECMA 273 : 1ED 98

Section 1 - General
1 Scope
2 Conformance
3 Reference
4 Definitions
   4.1 Cartridge
   4.2 Case
5 Conventions and notations
   5.1 Representation of numbers
   5.2 Names
6 General description of the case
   6.1 General description of the Type 1 case
   6.2 General description of the Type 2 case
   6.3 General description of the Type 3 case
7 General requirements
   7.1 Environments
        7.1.1 Test environment
        7.1.2 Operating environment
        7.1.3 Storage environment
        7.1.4 Transportation
   7.2 Temperature shock
   7.3 Safety requirement
   7.4 Flammability
Section 2 - Dimensional and Mechanical characteristics
            of the case
8 Dimensional characteristics
   8.1 Dimensions of the Type 1 case
        8.1.1 Overall dimensions
        8.1.2 Location hole
        8.1.3 Alignment hole
        8.1.4 Reference surfaces
        8.1.5 Insertion slots
        8.1.6 Detents
        8.1.7 Gripper slots
        8.1.8 Write-inhibit hole
        8.1.9 Sensor holes
        8.1.10 Sensing areas
        8.1.11 Spindle and head windows
        8.1.12 Shutter shape
        8.1.13 Path for shutter opener
        8.1.14 Label area
        8.1.15 Identification marks for Sides A and B
   8.2 Dimensions of the Type 2 case
        8.2.1 Overall dimensions
        8.2.2 Location hole
        8.2.3 Alignment hole
        8.2.4 Reference surfaces
        8.2.5 Insertion slot
        8.2.6 Detents
        8.2.7 Gripper slots
        8.2.8 Write-inhibit hole
        8.2.9 Sensor holes
        8.2.10 Sensing areas
        8.2.11 Spindle and head windows
        8.2.12 Shutter shape
        8.2.13 Path for shutter opener
        8.2.14 Label area
        8.2.15 Identification mark for Side A
        8.2.16 Opening and opening cover for taking the
               disk out of the case
   8.3 Dimensions of the Type 3 case
        8.3.1 Sensor holes
        8.3.2 Opening and opening cover
9 Mechanical characteristics
   9.1 Material
   9.2 Mass
   9.3 Edge distortion
   9.4 Compliance
   9.5 Shutter opening force
10 Interface between the case used as cartridge and a drive
   10.1 Capture cylinder
   10.2 Inner dimensions of the case
11 Orientation of the disk in the case
   11.1 Two-sided disk (Type 2S) in case Type 1
   11.2 One-sided disk (Type 1S) in case Types 1, 2 and 3
Annex A - Position of the case relative to the Reference
          Planes
Annex B - Edge distortion test
Annex C - Compliance test
Annex D - Examples of an opening cover for Type 2 or Type 3
          cases
Annex E - Transportation

Gives the characteristics of a case for use with 120 mm DVD-RAM disks as specified in ECMA-272. This Standard covers three related but different implementations; Type 1 gives a case for a one-sided (Type 1S) or a two-sided (Type 2S); Type 2 gives a case for a one-sided DVD-RAM disk (Type 1S); Type 3 provides a case into which a one-sided DVD-RAM disk (Type 1S) may be inserted then used as a cartridge. Also provides for mechanical interchange between optical disk drives together with ECMA-272 for 120 mm DVD-RAM disks and a standard for volume and file structure it provides a full data interchange between data processing systems.