INCITS/ISO/IEC 13549 : 1993

Section 1 - General
1 Scope
2 Conformance
   2.1 Optical disk cartridge (ODC)
   2.2 Generating system
   2.3 Receiving system
3 Normative 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 entrance surface
   4.10 Error Correction Code (XC)
   4.11 format
   4.12 fully embossed disk
   4.13 fully rewritable disk
   4.14 hub
   4.15 interleaving
   4.16 Kerr rotation
   4.17 land and groove
   4.18 logical track
   4.19 Logical ZCAV
   4.20 mark
   4.21 ODC with write once, read multiple functionality
   4.22 optical disk
   4.23 optical disk cartridge (ODC)
   4.24 partially embossed disk
   4.25 physical track
   4.26 physical track group
   4.27 pitch
   4.28 polarization
   4.29 pre-recorded mark
   4.30 read power
   4.31 recording layer
   4.32 Reed-Solomon code
   4.33 spindle
   4.34 substrate
   4.35 write-inhibit hole
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 Dimensions and mechanical characteristics of the case
   10.1 General
   10.2 Case drawings
   10.3 Sides, reference axes and reference planes
         10.3.1 Relationship of Sides A and B
         10.3.2 Reference axes and case reference planes
   10.4 Materials
   10.5 Mass
   10.6 Overall dimensions
   10.7 Location hole
   10.8 Alignment hole
   10.9 Surfaces on reference plane P
   10.10 Insertion slots and detent features
   10.11 Gripper slots
   10.12 Write-inhibit holes
   10.13 Media sensor holes
   10.14 Head and motor window
   10.15 Shutter
   10.16 Slot for shutter opener
   10.17 Shutter sensor notch
   10.18 User label areas
11 Dimensional and physical characteristics of the disk
   11.1 Dimensions of the disk
         11.1.1 Outer diameter
         11.1.2 Thickness
         11.1.3 Clamping zone
         11.1.4 Clearance zone
   11.2 Mass
   11.3 Moment of inertia
   11.4 Imbalance
   11.5 Axial deflection
   11.6 Axial acceleration
   11.7 Dynamic radial runout
   11.8 Radial acceleration
   11.9 Tilt
12 Drop test
13 Interface between disk and drive
   13.1 Clamping Technique
   13.2 Dimensions of the hub
         13.2.1 Outer diameter of the hub
         13.2.2 Height of the hub
         13.2.3 Diameter of the centre hole
         13.2.4 Height of the top of the centre
                 hole at diameter D[9]
         13.2.5 Centering length at diameter D[9]
         13.2.6 Radius at diameter D[9]
         13.2.7 Chamfer at diameter D[8]
         13.2.8 Outer diameter of the magnetizable ring
         13.2.9 Inner diameter of the magnetizable ring
         13.2.10 Thickness of the magnetizable material
         13.2.11 Position of the top of the magnetizable
                 ring relative to the disk reference plane
   13.3 Clamping method
   13.4 Clamping force
   13.5 Capture cylinder for the hub
   13.6 Disk position in the operating condition
14 Characteristics of the substrate
   14.1 Index of refraction
   14.2 Thickness
15 Characteristics of recorded and embossed information
   15.1 Method of testing
         15.1.1 Environment
         15.1.2 Use of the Reference Drive
         15.1.3 Read conditions
         15.1.4 Write conditions
         15.1.5 Erase conditions
   15.2 Baseline reflectance
         15.2.1 General
         15.2.2 Measured value
         15.2.3 Requirement
   15.3 Magneto-optical recording in the Data Zone
         15.3.1 Resolution
         15.3.2 Imbalance of magneto-optical signal
         15.3.3 Vertical birefringence
         15.3.4 Figure of merit for magneto-optical signal
         15.3.5 Narrow-band signal-to-noise ratio
         15.3.6 Cross-talk ratio
         15.3.7 Ease of erasure
   15.4 Characteristics of information
         15.4.1 Groove-related signals
         15.4.2 Properties of pre-recorded marks
         15.4.3 Parameters of the read characteristics
Section 3 - Format of information
16 Features
   16.1 Geometry of physical tracks
         16.1.1 Shape
         16.1.2 Direction of rotation
         16.1.3 Physical track pitch
   16.2 Formatted Zone
         16.2.1 Data Zone
         16.2.2 Reflective Zone
         16.2.3 SFP Transition Zone
         16.2.4 Inner Control Track SFP Zone
         16.2.5 Inner Manufacturer Zone
         16.2.6 Outer Manufacturer Zone
         16.2.7 Outer Control Track SFP Zone
         16.2.8 Lead-out Zone
         16.2.9 Track number
   16.3 Control tracks
   16.4 PEP Zone
         16.4.1 Recording in the PEP Zone
         16.4.2 Cross-track loss
         16.4.3 Format of the tracks of the PEP Zone
         16.4.4 Summary of the format of the Data
                 field of a sector
   16.5 Control Track SFP Zones
         16.5.1 Duplicate of the PEP information
         16.5.2 Media information
         16.5.3 System Information
         16.5.4 Unspecified content
   16.6 Requirements for interchange of a user-recorded
         cartridge
         16.6.1 Requirements for reading
         16.6.2 Requirements for writing and erasing
Section 4 - Physical and logical format
17 Physical format
   17.1 Track layout
         17.1.1 Tracking
   17.2 Sector format
         17.2.1 Sector Mark
         17.2.2 VFO fields
         17.2.3 Address Mark (AM)
         17.2.4 ID fields
         17.2.5 Postamble (PA)
         17.2.6 Offset Detection Flag (ODF)
         17.2.7 Cap
         17.2.8 Flag
         17.2.9 Auto laser Power Control (ALPC)
         17.2.10 sync
         17.2.11 Data field
         17.2.12 Buffer
   17.3 Recording code
18 Logical format
   18.1 Format of the Data Zone
         18.1.1 Defect Management Areas
         18.1.2 Type R/W (Fully rewritable disks)
         18.1.3 Type O-ROM (Fully embossed disks)
         18.1.4 Type P-ROM (Partially embossed disks)
         18.1.5 Type WO (Write owe disks)
   18.2 Partitioning
         18.2.1 Type R/W (Fully rewritable disks)
         18.2.2 Type P-ROM (Partially embossed disks)
         18.2.3 Type O-ROM (Fully embossed disks)
         18.2.4 Type WO (Write once disks)
   18.3 Defect management
         18.3.1 R/W and WO Zones: Spare sectors
         18.3.2 Embossed groups: parity sectors
Section 5 - Characteristics of User Data
19 Minimum quality of a sector
   19.1 Headers
         19.1.1 Sector Mark
         19.1.2 ID fields
   19.2 User-written data
   19.3 Embossed data
20 Data interchange requirements
   20.1 Tracking
   20.2 User-written data
   20.3 Embossed data
   20.4 Quality of the disk
Annexes
A - Air cleanliness class 100 000
B - CRC for ID fields
C - Definition of write pulse width
D - Interleave, CRC, ECC, Resync for the Data field
E - Measurement of the figure of merit
F - Test method for measuring the adsorbent force of the hub
G - Office environment
H - Derivation of the operating climatic environment
J - Transportation
K - Track deviation measurement
L - Read power, write power and erase power for 50 Hz
    operation
M - Guidelines for sector retirement
N - Guidelines for the use of ODCs of Type WO
P - Measure of substrate vertical birefringence

Specifies: - the conditions for conformance testing; - the environments in which the cartridges are to be operated and stored; - the mechanical, physical and dimensional characteristics of the case and of the cartridges, so as to provide mechanical interchangeability between the data processing systems; - the format of the information on the disk, both embossed and user-written, including the physical disposition of the tracks and sectors, the error correction codes, and the modulation method used; - the characteristics of the embossed information on the disk; - the magneto-optical characteristics of the disk, enabling processing systems to write data onto the disk; - the minimum quality of user-written data on the disk, enabling data processing systems to read data from the disk. Provides for interchange between optical disk drives.