• BS ISO/IEC 10090:1992

    Current The latest, up-to-date edition.

    Information technology. 90 mm optical disk cartridges, rewritable and read only, for data interchange

    Available format(s):  Hardcopy, PDF

    Language(s):  English

    Published date:  15-01-1993

    Publisher:  British Standards Institution

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    Table of Contents - (Show below) - (Hide below)

    1 Scope
    2 Conformance
    3 Normative reference
    4 Definitions
    4.1 case
    4.2 cyclic redundancy check (CRC)
    4.3 embossed mark
    4.4 entrance surface
    4.5 error correction code (ECC)
    4.6 field
    4.7 format
    4.8 groove
    4.9 interleaving
    4.10 Kerr rotation
    4.11 land and groove
    4.12 mark
    4.13 optical disk
    4.14 optical disk cartridge (ODC)
    4.15 polarization
    4.16 recording layer
    4.17 Reed-Solomon code
    4.18 rewritable optical disk
    4.19 sector
    4.20 substrate
    4.21 track
    4.22 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
    8.2 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
    10.4 Mechanical characteristics
    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
    11.4 Mechanical characteristics
    11.5 Optical characteristics
    12 Interface between cartridge and drive
    12.1 Clamping method
    12.2 Clamping force
    12.3 Capture cylinder (see figure 14)
    12.4 Disk position in operating condition (see figure
           14)
    Section 3 - Format of information
    13 Track geometry
    13.1 Track shape
    13.2 Direction of rotation
    13.3 Track pitch
    13.4 Track number
    14 Track format
    14.1 Track layout
    14.2 Radial alignment
    14.3 Sector Number
    15 Sector format
    15.1 Sector layout
    15.2 Sector Mark
    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
    15.11 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
    18 Format of the Data Zone
    18.1 Defect Management Areas (DMAs)
    18.2 Disk Definition Sector (DDS)
    18.3 Rewritable Zone
    18.4 Embossed Zone
    19 Defect management in the Rewritable Zone
    19.1 Initialization of the disk
    19.2 Certification
    19.3 Disks not certified
    19.4 Write procedure
    19.5 Primary Defect List (PDL)
    19.6 Secondary Defect List (SDL)
    Section 4 - Characteristics of embossed information
    20 Method of testing
    20.1 Environment
    20.2 Use of the Reference Drive
    20.3 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 On-track signal
    21.6 Phase depth
    21.7 Track location
    22 Signals from Headers
    22.1 Sector Mark
    22.2 VFO1 and VFO2
    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
    24.3 Write conditions
    24.4 Erase conditions
    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
    29 Minimum quality of a sector
    29.1 Headers
    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 absorbent force of
           the hub
    L Derivation of the operating climatic environment
    M Air cleanliness class 100 000
    N Position of the cartridge relative to the
           reference planes
    P Transportation
    Q Office environment
    R Relaxation by zones of the requirements for
           signals

    Abstract - (Show below) - (Hide below)

    Specifies the characteristics of 90mm optical disk cartridges (ODCs) of the type providing for data to be read, written and erased many times using the magneto-optical and thermo-magnetic effects. Coverage includes: mechanical and physical characteristics; format of information; characteristics of embossed information; characteristics of the recording layer; characteristics of user data. Also includes detailed annexes.

    Scope - (Show below) - (Hide below)

    This International Standard specifies

    • the conditions for conformance testing and the Reference Drive;

    • the mechanical and physical characteristics of the cartridge, so as to provide mechanical interchangeability between data processing systems;

    • 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, 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.

    General Product Information - (Show below) - (Hide below)

    Committee ICT/1
    Development Note Supersedes 91/67251 DC. (04/2005)
    Document Type Standard
    Publisher British Standards Institution
    Status Current
    Supersedes
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