ECMA 223 : 1ED 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 References
4 Definitions
   4.1 band
   4.2 case
   4.3 Channel bit
   4.4 clamping zone
   4.5 control track
   4.6 Cyclic Redundancy Check (CRC)
   4.7 defect management
   4.8 disk reference plane
   4.9 embossed mark
   4.10 entrance surface
   4.11 Error Correction Code (ECC)
   4.12 field 2
   4.13 format
   4.14 fully rewritable disk
   4.15 groove
   4.16 hub
   4.17 interleaving
   4.18 Kerr rotation
   4.19 land and groove
   4.20 logical track
   4.21 mark
        4.21.1 mark edge recording
   4.22 optical disk
   4.23 optical disk cartridge (ODC)
   4.24 physical track
   4.25 physical track group
   4.26 pitch
   4.27 polarization
   4.28 read power
   4.29 recording layer
   4.30 Reed-Solomon code
   4.31 rewritable optical disk
   4.32 sector
   4.33 spindle
   4.34 substrate
   4.35 ZCAV format
   4.36 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 Detents
        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 Mis-insert protections
        10.3.11 Gripper slots
        10.3.12 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 Birefringence
        11.5.4 Reflectance
12 Interface between cartridge and drive
   12.1 Clamping method
   12.2 Clamping force
   12.3 Capture cylinder
   12.4 Disk position in operating condition
Section 3 - Format of information
13 Geometry of physical tracks
   13.1 Track shape
   13.2 Direction of track spiral
   13.3 Physical track pitch
14 Track format
   14.1 Track number
   14.2 Track layout
   14.3 Clock frequencies and periods
   14.4 Sector number
15 Sector format
   15.1 Sector layout (data zone)
   15.2 Sector Mark
   15.3 VFO fields
   15.4 Address Mark (AM)
   15.5 ID fields
   15.6 Postambles (PA)
   15.7 Gap1
   15.8 Gap2
   15.9 Sync
   15.10 Data field
         15.10.1 User data bytes
         15.10.2 CRC and ECC bytes
         15.10.3 Resync bytes
         15.10.4 Buffer field
16 Recording code
17 Format of the Information Zone
   17.1 General description of the Information Zone
   17.2 Division of the Information Zone
        17.2.1 Initial Zone
        17.2.2 Acquire Zone
        17.2.3 Test Zones
        17.2.4 Control Zones
        17.2.5 Data Zone
        17.2.6 Buffer Zone
18 Format of the Data Zone
   18.1 Defect Management Areas (DMAs)
   18.2 Disk Definition Structure (DDS)
   18.3 Media types
   18.4 Partitioning
19 Defect management
   19.1 Rewritable groups: Spare sectors
        19.1.1 Initialization of the disk
        19.1.2 Certification
        19.1.3 Slipping Algorithm
        19.1.4 Linear Replacement Algorithm
        19.1.5 Disks not certified
        19.1.6 Write procedure
        19.1.7 Primary Defect List (PDL)
        19.1.8 Secondary Defect List (SDL)
Section 4 - Characteristics of embossed information
20 Method of testing
   20.1 Environment
   20.2 Use of the Reference Drive
        20.2.1 Optics and Mechanics
        20.2.2 Read Power
        20.2.3 Read Channels
        20.2.4 Tracking
   20.3 Definition of signals
21 Signals from grooves
   21.1 Cross-track signal
   21.2 Cross-track minimum signal
   21.3 Push-pull signal
   21.4 Divided push-pull signal
   21.5 Phase depth
   21.6 Track location
22 Signals from embossed Headers
   22.1 Embossed Sector Mark
   22.2 Embossed VFO, and VFOZ Fields
   22.3 Embossed Address Mark, ID and Postamble
23 Signals from embossed Recording fields
Section 5 - Characteristics of the recording layer
24 Method of testing
   24.1 Environment
   24.2 Reference Drive
        24.2.1 Optics and mechanics
        24.2.2 Read power
        24.2.3 Read Channel
        24.2.4 Tracking
   24.3 Write conditions
        24.3.1 Write pulse
        24.3.2 Write power and pulse width
        24.3.3 Write magnetic field
   24.4 Erase conditions
        24.4.1 Erase power
        24.4.2 Erase magnetic field
   24.5 Definition of signals
25 Magneto-optical characteristics
   25.1 Figure of merit
   25.2 Imbalance of the magneto-optical signal
26 Write characteristics
   26.1 Resolution
   26.2 Narrow-band signal-to-noise ratio
   26.3 Cross-talk
27 Erase characteristics
Section 6 - Characteristics of user data
28 Method of testing
   28.1 Environment
   28.2 Reference Drive
        28.2.1 Optics and mechanics
        28.2.2 Read power
        28.2.3 Read amplifiers
        28.2.4 Analog-to-binary converters
        28.2.5 Error correction
        28.2.6 Tracking
29 Minimum Quality of a Sector
   29.1 Headers
        29.1.1 Sector Mark
        29.1.2 ID fields
   29.2 User-written data
30 Data interchange requirements
   30.1 Tracking
   30.2 User-written data
   30.3 Quality of disk
Annexes
Annex A - Edge distortion test
Annex B - Compliance test
Annex C - Track deviation measurement
Annex D - CRC for ID fields
Annex E - Format of the Data field of a sector
Annex F - Contents of the Control Zones
Annex G - Guidelines for sector replacement
Annex H - Measurement of the figure of merit
Annex J - Read power, write power and erase power
Annex K - Test method for measuring the adsorbent force
          of the hub
Annex L - Derivation of the operating climatic environment
Annex M - Air cleanliness class 100000
Annex N - Position of the cartridge relative to the
          reference planes
Annex P - Transportation
Annex Q - Office environment
Annex R - Relaxation by zones of the requirements for
          signals
Annex S - GCR Recording Codes

Specifies the characteristics of 90 mm Optical Disk Cartridges, (ODCs) with a capacity of 385 Mbytes per cartridge. Specifies one type of such cartridge, viz. Type R/W.