ANSI INCITS 211 : 1992

Foreword
Introduction
Part 1: Unrecorded optical disk cartridge
1 Scope
2 Conformance
3 Normative references
4 Definitions
   4.1 case
   4.2 clamping zone
   4.3 control track
   4.4 cyclic redundancy check (CRC)
   4.5 defect management
   4.6 disk reference plane
   4.7 entrance surface
   4.8 error correction code (ECC)
   4.9 format
   4.10 groove
   4.11 hub
   4.12 interleaving
   4.13 land and groove
   4.14 mark
   4.15 optical disk
   4.16 optical disk cartridge (ODC)
   4.17 recording layer
   4.18 Reed-Solomon code
   4.19 spindle
   4.20 substrate
   4.21 track
   4.22 track pitch
5 General description
6 Environments
   6.1 Testing environment
   6.2 Operating environment
   6.3 Storage environments
7 Safety requirements
8 Dimensional and mechanical characteristics of the case
   8.1 General
   8.2 Case drawings
   8.3 Sides, reference axes and reference planes
   8.4 Materials
   8.5 Mass
   8.6 Overall dimensions (figure 3)
   8.7 Location hole (figure 3)
   8.8 Alignment hole (figure 3)
   8.9 Surfaces for reference planes P (figures 4 and 4a)
   8.10 Insertion slots and detent features (figure 5)
   8.11 Gripper slots (figure 6)
   8.12 Write-inhibit holes (figure 7)
   8.13 Media sensor holes (figure 8)
   8.14 Head and motor window (figure 10)
   8.15 Shutter (figure 11)
   8.16 Slot for shutter opener (figure 11)
   8.17 Shutter sensor notch (figure 9)
   8.18 User label areas (figure 13)
9 Dimensional and physical characteristics of the disk
   9.1 Dimensions of the disk
   9.2 Mass
   9.3 Moment of inertia
   9.4 Imbalance
   9.5 Axial deflection
   9.6 Axial acceleration
   9.7 Dynamic radial rut-rout
   9.8 Radial acceleration
   9.9 Tilt
10 Drop test
11 Interface between disk and drive
   11.1 Clamping technique
   11.2 Dimensions of the hub (figure 1)
   11.3 Magnetizable material
   11.4 Clamping force
   11.5 Capture cylinder for the hub (figure 12)
   11.6 Disk position in the operating condition (figure 12)
12 Characteristics of the substrate
   12.1 Index of refraction
   12.2 Thickness
   12.3 Birefringence
13 Characteristics of the recording layer
   13.1 Test conditions
   13.2 Baseline reflectance
   13.3 Definitions of signals
   13.4 Prerecorded marks
   13.5 User-written data
Annexes
A Office environment
B Transportation
C Measurement of birefringence
D Definition of write and erase pulse width
Part 2: Recording format
1 Scope 4
2 Conformance
3 Conventions and notations
4 Features common to both formats
   4.1 Track geometry
   4.2 Formatted zone
   4.3 Control tracks
   4.4 Control track PEP zone
   4.5 Control track SFP zones
   4.6 Requirements for interchange
5 Format A
   5.1 Track layout
   5.2 Sector format
   5.3 Defect management
6 Format B
   6.1 Track layout
   6.2 Data structure
Annexes
A Values to be implemented in future standards
B CRC for ID fields of format A
C Interleave, CRC, ECC, Resync for the data field of format A
D Linear replacement map defect management (LDM)

Describes definitions of essential concepts; the environment in which the characteristics are to be tested; the environments in which the cartridge is to be operated and stored; the mechanical, physical and dimensional characteristics of the case and of the optical disk; the optical characteristics and the recording characteristics for recording the information once and for reading it many times, so as to provide physical interchangeability between data processing systems. Also describes two formats for the physical disposition of the tracks and sectors, the error correction codes, the modulation methods used for recording and the quality of the recorded signals.