ECMA 201 : 2ED 94

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 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
   4.13 format
   4.14 fully embossed disk
   4.15 fully rewritable disk
   4.16 groove
   4.17 hub
   4.18 interleaving
   4.19 Kerr rotation
   4.20 land and groove
   4.21 logical track
   4.22 mark
   4.23 optical disk
   4.24 optical disk cartridge (ODC)
   4.25 partially embossed disk
   4.26 physical track
   4.27 physical track group
   4.28 pitch
   4.29 polarization
   4.30 read power
   4.31 recording layer
   4.32 Reed-Solomon code
   4.33 sector
   4.34 spindle
   4.35 substrate
   4.36 ZCAV
   4.37 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 Physical 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 Radial alignment
   14.5 Sector number
15 Sector format
   15.1 Sector layout
   15.2 Sector Mark (SM)
   15.3 VFO fields
   15.4 Address Mark (AM)
   15.5 ID fields
   15.6 Postambles (PA)
   15.7 Offset Detection Field (ODF)
   15.8 Gap
   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
   15.11 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 Buffer tracks in the Data Zone
   18.2 Defect Management Areas (DMAs)
   18.3 Disk Definition Structure (DDS)
         18.3.1 Fully rewritable disks
         18.3.2 Fully embossed disks
         18.3.3 Partially embossed disks
   18.4 Partitioning
         18.4.1 Fully rewritable disks
         18.4.2 Partially embossed disks
         18.4.3 Fully embossed disks
19 Defect management
   19.1 Rewritable groups: Spare sectors
         19.1.1 Initialization of the disk
         19.1.2 Certification
         19.1.3 Disks not certified
         19.1.4 Write procedure
         19.1.5 Primary Defect List (PDL)
         19.1.6 Secondary Defect List (SDL)
   19.2 Embossed groups: Parity sectors
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 Headers
   22.1 Sector Mark
   22.2 VF01 and VF02
   22.3 Address Mark, ID field 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
   29.3 Embossed data
30 Data interchange requirements
   30.1 Tracking
   30.2 User-written data
   30.3 Embossed data
   30.4 Quality of disk
Annexes
A - Edge distortion test
B - Compliance test
C - Track deviation measurement
D - CRC for ID fields
E - format of the Data field of a sector
F - Contents of the Control Zones
G - Guidelines for sector replacement
H - Measurement of the figure of merit
J - Read power, write power and erase power
K - Test method for measuring the adsorbent force of the
    hub
L - Derivation of the operating climatic environment
M - Air cleanliness class 100000
N - Position of the cartridge relative to the reference
    planes
P - Transportation
Q - Office environment
R - Relaxation by zones of the requirements for signals
S - Values to be implemented in existing and future
    standards

Specifies the characteristics of 90 mm Optical Disk Cartridges (ODC) with a capacity of 230 Mbytes per Cartridge. Also specifies three related, but different implementations of such cartridges, viz. Type R/W, Type P-ROM, Type O-ROM. 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 and physical 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.