ECMA 195 : 2ED 95

Section 1: General
1 Scope
2 Conformance
   2.1 Optical Disk Cartridge (ODC)
   2.2 Generating system
   2.3 Receiving system
   2.4 Compatibility statement
3 Reference
4 Definitions
   4.1 band
   4.2 case
   4.3 clamping zone
   4.4 control track
   4.5 Cyclic Redundancy Check (CRC)
   4.6 defect management
   4.7 disk reference plane
   4.8 entrance surface
   4.9 Error Correction Code (ECC)
   4.10 format
   4.11 hub
   4.12 interleaving
   4.13 Kerr rotation
   4.14 land and groove
   4.15 logical track
   4.16 mark
   4.17 mark edge
   4.18 mark edge recording
   4.19 optical disk
   4.20 optical disk cartridge (ODC)
   4.21 physical track
   4.22 polarization
   4.23 pre-recorded mark
   4.24 read power
   4.25 recording layer
   4.26 Reed-Solomon code
   4.27 spindle
   4.28 substrate
   4.29 track pitch
   4.30 write-inhibit hole
   4.31 write once functionality
   4.32 zone4
5 Conventions and notations
   5.1 Representation of numbers
   5.2 Names
6 List of acronyms
7 General description of the optical disk cartridge
8 General requirements
   8.1 Environments
   8.2 Temperature shock
   8.3 Safety requirements
   8.4 Flammability
9 Reference Drive
   9.1 Optical system
   9.2 Optical beam
   9.3 Read channels
   9.4 Tracking
   9.5 Rotation of the disk
Section 2: Mechanical and physical characteristics
10 Dimensional and physical characteristics of the case
   10.1 General description of the case
   10.2 Relationship of Sides A and B
   10.3 Reference axes and case reference planes
   10.4 Case drawings
   10.5 Dimensions of the case
   10.6 Mechanical characteristics
   10.7 Drop test
11 Dimensional, mechanical and physical characteristics of
   the disk
   11.1 General description of the disk
   11.2 Reference axis and plane of the disk
   11.3 Dimensions of the disk
   11.4 Mechanical characteristics
   11.5 Optical characteristics
12 Interface between cartridge and drive
   12.1 Clamping method
   12.2 Clamping force
   12.3 Capture cylinder
   12.4 Disk position in the operating condition
Section 3: Format of information
13 Track geometry
   13.1 Track shape
   13.2 Direction of track spiral
   13.3 Track pitch
   13.4 Logical track number
   13.5 Physical track number
14 Track format
   14.1 Physical track layout
   14.2 Logical track layout
   14.3 Radial alignment
   14.4 Sector number
15 Sector format
   15.1 Sector layout
   15.2 Sector mark
   15.3 VFO fields
   15.4 Address Mark (AM)
   15.5 ID fields
   15.6 Postamble (PA)
   15.7 Gap
   15.8 Auto Laser Power Control (ALPC)
   15.9 Sync
   15.10 Data field
   15.11 Buffer field
16 Recording code
17 Formatted Zone
   17.1 General description of the Formatted Zone
   17.2 Division of the Formatted Zone
   17.3 Control Track PEP Zone
   17.4 Control Track SFP Zones
   14.4 Sector number
18 Layout of the User Zone
   18.1 General description of the User Zone
   18.2 Divisions of the User Zone
   18.3 User Area
   18.4 Defect Management Areas (DMAs)
   18.5 Disk Definition Structure
   18.6 Rewritable Zone
   18.7 Embossed Zone
   18.8 Write Once Zone
19 Defect Management in the Rewritable and Write Once Zones
   19.1 Initialization of the disk
   19.2 Certification
   19.3 Disks not certified
   19.4 Write procedure
   19.5 Primary Defect List (PDL)
   19.6 Secondary Defect List (SDL)
Section 4: Characteristics of embossed information
20 Method of testing
   20.1 Environment
   20.2 Use of the Reference Drive
   20.3 Definition of signals
21 Signal from grooves
   21.1 Cross-track signal modulation ratio
   21.2 Cross-track minimum signal ratio
   21.3 Push-pull ratio
   21.4 Divided push-pull signal
   21.5 On-track signal ratio
   21.6 Phase depth
   21.7 Track location
22 Signals from Headers
   22.1 Sector Mark Signals
   22.2 VFO signals
   22.3 Address Mark, ID and PA signals
   22.4 Timing jitter
23 Signals from embossed Recording fields
   23.1 Signal amplitude
   23.2 Modulation method offset
   23.3 Timing Jitter
24 Signals from Control Track PEP marks
Section 5: Characteristics of the recording layer
25 Method of testing
   25.1 Environment
   25.2 Reference Drive
   25.3 Write conditions
   25.4 Erase conditions
   25.5 Definition of signals
26 Magneto-optical characteristics
   26.1 Figure of merit for magneto-optical signal
   26.2 Imbalance of magneto-optical signal
27 Write characteristics
   27.1 Resolution
   27.2 Narrow-band signal-to-noise ratio
   27.3 Cross-talk ratio
   27.4 Timing Jitter
   27.5 Media thermal build-up during mark formation
28 Erase power determination
Section 6: Characteristics of user data
29 Method of testing
   29.1 Environment
   29.2 Reference Drive
30 Minimum quality of a sector
   30.1 Headers
   30.2 User-written data
   30.3 Embossed data
31 Data interchange requirements
   31.1 Tracking
   31.2 User-written data
   31.3 Embossed data
   31.4 Quality of disk
Annex A - Air cleanliness 100 000
Annex B - Edge distortion test
Annex C - Compliance test
Annex D - Test method for measuring the adsorbent force of
          the hub
Annex E - CRC for ID fields
Annex F - Interleave, CRC, ECC, Resync for the data field
Annex G - Determination of Resync pattern
Annex H - Read Channel for measuring C/N and jitter
Annex J - Timing jitter measuring procedure
Annex K - Definition of write pulse shape
Annex L - Measurement of figure of merit
Annex M - Implementation Independent Mark Quality
          Determination (IIMQD) for the interchange of
          recorded media
Annex N - Requirements for interchange
Annex P - Office environment
Annex Q - Derivation of the operating climatic environment
Annex R - Transportation
Annex S - Sector retirement guidelines
Annex T - Track deviation measurement
Annex U - Values to be implemented in existing and future
          standards
Annex V - Guidelines for the use of Type WO ODCs

Specifies the characteristics of a series of related 130 mm optical disk cartridges (ODCs) by using a number of Type designations. Also specifies the conditions for conformance testing and the Reference Drive; the environments in which the cartridges are to be operated and stored; the mechanical, physical and dimensional characteristics of the cartridge; the format of the information on the disk, both embossed and user-written; the characteristics of the embossed information on the disk; the magneto-optical characteristics of the disk; the minimum quality of user-written data on the disk, enabling data processing systems to read data from the disk.