ECMA 239 : 1ED 96

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 Channel bit
   4.4 clamping zone
   4.5 control zone
   4.6 Cyclic Redundancy Check (CRC)
   4.7 data clock
   4.8 defect management
   4.9 disk reference plane
   4.10 embossed mark
   4.11 entrance surface
   4.12 Error Correction Code (ECC)
   4.13 field
   4.14 format
   4.15 frame
   4.16 flyable zone
   4.17 groove
   4.18 Gray code Encoded Part (GEP)
   4.19 hub
   4.20 interleaving
   4.21 Kerr rotation
   4.22 land and groove
   4.23 magnetic field modulation
   4.24 mark
   4.25 optical disk
   4.26 optical disk cartridge (ODC)
   4.27 polarization
   4.28 protective coating
   4.29 read power
   4.30 recording magnetic field
   4.31 recording layer
   4.32 Reed-Solomon code
   4.33 servo clock
   4.34 sector
   4.35 segment
   4.36 spindle
   4.37 substrate
   4.38 track
   4.39 track pitch
   4.40 zone
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
        8.1.1 Testing environment
        8.1.2 Operating environment
        8.1.3 Storage environment
        8.1.4 Transportation
   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 Reference planes of the case
   10.3 Dimensions of the case
        10.3.1 Overall dimensions
        10.3.2 Location hole
        10.3.3 Alignment hole
        10.3.4 Reference surfaces
        10.3.5 Insertion slots and detent features
        10.3.6 Functional Areas
        10.3.7 Spindle and head windows
        10.3.8 Shutter
        10.3.9 Path for shutter opener and shutter
                sensor notch
        10.3.10 Label area
   10.4 Mechanical characteristics
        10.4.1 Material
        10.4.2 Mass
        10.4.3 Edge distortion
        10.4.4 Compliance
        10.4.5 Shutter opening force
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
        11.3.1 Hub dimensions
        11.3.2 Clamping zone
   11.4 Mechanical characteristics
        11.4.1 Material
        11.4.2 Mass
        11.4.3 Moment of inertia
        11.4.4 Imbalance
        11.4.5 Axial deflection
        11.4.6 Axial acceleration
        11.4.7 Radial runout
        11.4.8 Radial acceleration
        11.4.9 Tilt
   11.5 Optical characteristics
        11.5.1 Index of refraction
        11.5.2 Thickness of the substrate
        11.5.3 Reflectance
   11.6 Protective coating
        11.6.1 General description of protective coating
        11.6.2 General description of the flyable zone
        11.6.3 Characteristics of the protective coating
                in the flyable zone
        11.6.4 Dimensions of the protective coating
                outside the flyable zone
12 Interface between cartridge and drive
   12.1 Clamping method
   12.2 Clamping force
   12.3 Capture cylinder
   12.4 Disk position in operating conditions
Section 3 - Format of information
13 Track geometry
   13.1 Track shape
   13.2 Direction of track spiral
   13.3 Track pitch
14 Track format
   14.1 Track number
   14.2 Track layout
   14.3 Clock frequencies
        14.3.1 Servo clock
        14.3.2 Data clock
   14.4 Frame number
15 Segment format
   15.1 Layout of Address Segments
        15.1.1 Servo field
        15.1.2 Gap
        15.1.3 Address field
        15.1.4 ALPC 39
   15.2 Layout of Data Segments
        15.2.1 Servo field
        15.2.2 Pre-write field
        15.2.3 Data field
        15.2.4 Post-write field
   15.3 Position accuracy of data pits
16 Sector format
   16.1 Sector layout
   16.2 Reference data
   16.3 Sector Data field
        16.3.1 User Data bytes
        16.3.2 UD/SIP bytes
        16.3.3 CRC and ECC bytes
   16.4 Buffer field
   16.5 Sector number
17 Recording code
18 Format of the Information Zone
   18.1 General description of the Information Zone
   18.2 Division of the Information Zone
   18.3 Control Zones
        18.3.1 GEP Zone
        18.3.2 SFP Zone
        18.3.3 Buffer Zone
        18.3.4 Transition Zone
   18.4 Test Zone
   18.5 Data Zone
19 Format of the Data Zone
   19.1 Buffer Sectors in the Data Zone of P-ROM
   19.2 Defect Management Areas (DMAs)
   19.3 Disk Definition Structure (DDS)
        19.3.1 Fully Rewritable Disks
        19.3.2 Fully Embossed Disks
        19.3.3 Partially Embossed Disks
   19.4 Partitioning
        19.4.1 Fully Rewritable Disks
        19.4.2 Partially Embossed Disks
        19.4.3 Fully Embossed Disks
20 Defect Management
   20.1 Rewritable groups: Spare sectors
        20.1.1 Initialization of the Disk
        20.1.2 Certification
        20.1.3 Disks not certified
        20.1.4 Write procedure
        20.1.5 Primary Defect List (PDL)
        20.1.6 Secondary Defect List (SDL)
   20.2 Embossed groups: Sector Interleave Parity
Section 4 - Characteristics of embossed information
21 Method of testing
   21.1 Environment
   21.2 Use of the Reference Drive
        21.2.1 Optics and mechanics
        21.2.2 Read power
        21.2.3 Read channels
        21.2.4 Tracking
   21.3 Definition of signals
22 Signals from Wobble Marks
   22.1 On-track modulation
   22.2 Off-track modulation
   22.3 Wobble Mark Imbalance
   22.4 Tracking error modulation
   22.5 FWHM
   22.6 Jitter of Wobble Marks
23 Signals from Segment Marks and Address fields
   23.1 Segment Marks
   23.2 Address fields
   23.3 FWHM
   23.4 Segment Mark position
24 Signal from grooves
   24.1 Groove offset
   24.2 On-track signal
   24.3 Phase depth
25 Signals from embossed Recording fields
   25.1 Signal amplitude
   25.2 Signal asymmetry
Section 5 - Characteristics of the recording layer
26 Method of testing
   26.1 Environments
   26.2 Reference Drive
        26.2.1 Optics and mechanics
        26.2.2 Read power
        26.2.3 Read channel
        26.2.4 Tracking
   26.3 Overwrite conditions
        26.3.1 Write pulse
        26.3.2 Write magnetic field
        26.3.3 N-mark and S-mark
   26.4 Definition of signals
27 Magneto-optical characteristics
   27.1 Figure of merit
   27.2 Imbalance of the magneto-optical signal
28 Overwrite characteristics
   28.1 Definition of 2T and Isolated patterns of 1S
        and 1SR
   28.2 Resolution
   28.3 SNR
   28.4 Write power window
Section 6 - Characteristics of user data
29 Method of testing
   29.1 Environment
   29.2 Reference Drive
        29.2.1 Optics and mechanics
        29.2.2 Read power
        29.2.3 Read amplifiers
        29.2.4 Analog-to-binary converters
        29.2.5 Error correction
        29.2.6 Tracking
30 Minimum quality of a sector
   30.1 Segment Marks and Address fields
        30.1.1 Segment Marks
        30.1.2 Address fields
   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 Edge distortion test
Annex B Compliance test
Annex C Format of the Sector Data field
Annex D Contents of the Control Zones
Annex E Level Clamping Circuit
Annex F Measurement of the figure of merit
Annex G Write power
Annex H Test method for measuring the absorbent force
        of the hub
Annex J Air cleanliness class 100000
Annex K Position of the cartridge relative to the
        reference planes
Annex L Relaxation by zones of the requirement for
        signals
Annex M A method for calculation of the sector number
Annex N Scrambling of recording data
Annex P Guidelines for sector replacement
Annex Q Test method for measuring the friction force
        and wear in thickness
Annex R Track deviation measurement
Annex S Derivation of the operating climatic environment
Annex T Transportation
Annex U Office environment
Annex V Values to be implemented in existing and future
        specifications
Annex W Detection of the Segment Mark positions

Specifies the characteristics of 90 mm Optical Disk Cartridges (ODC) with a capacity of 650 Mbytes per Cartridge. Specifies three related, but different implementations of such cartridges, viz. Type R/W, Type P-ROM, Type O-ROM. Provides for interchange between optical disk drives. Together with a standard for volume and file structure, it provides for full data interchange between data processing systems.