• BS EN 60908:1999

    Current The latest, up-to-date edition.

    Audio recording. Compact disc digital audio system

    Available format(s):  Hardcopy, PDF

    Language(s):  English

    Published date:  15-05-1999

    Publisher:  British Standards Institution

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

    1 Scope and object
    2 Normative references
    3 Description of system
    4 Requirements of measurements
    4.1 Conditions of measurement
    4.2 Requirements for the measuring pick-up
    4.3 Requirements for the clamping of the disc
    5 Mechanical parameters
    5.1 Outer dimensions of disc
    5.2 Centre hole dimensions
    5.3 Thickness of disc
    5.4 Labelling
    5.5 Reference plane
    5.6 Clamping area
    5.7 Mass of disc
    5.8 Limits for the deflections of the read-out side of the disc
    6 Optical parameters
    6.1 Thickness of transparent substrate
    6.2 Refractive index
    6.3 Limits for the angular deviation of the reflected beam (a)
    6.4 Birefringence of transparent substrate
    6.5 Reflectivity
    6.6 Limits of reflectivity variation in program area
    7 Recording parameters
    7.1 Rotation during playback
    7.2 Track
    7.3 Limits for deviations of information layer perpendicular to
          reference plane
    7.4 Limits for radical deviations of the track
    8 Environmental conditions for playing the compact disc
    8.1 Playing the compact disc
    8.2 Temperature and humidity requirements
    9 High-frequency signal
    9.1 Measurement conditions
    9.2 Modulation amplitude
    9.3 Signal asymmetry
    9.4 Cross-talk
    9.5 Frequency modulation of the channel bit frequency (see clause 13)
    10 Radical differential (RD) signal
    10.1 Measurement conditions
    10.2 Shape of the radial differential signal
    10.3 Sensitivity to radial offset
    10.4 Noise
    11 Defects
    11.1 Block error rate (BLER)
    11.2 Local defects
    12 General - Recorded parameters
    13 Eight to 14 modulation code (EFM-code)
    14 Frame format
    15 EFM-modulator
    16 Error correction
    16.1 General
    16.2 Structure
    16.3 CIRC encoder and decoder
    17 Subcode/control and display system
    17.1 General
    17.2 Data format
    17.3 Subcode structure
    17.4 Channel P
    17.5 Channel Q
    17.6 Channels R to W inclusive
    18 General
    19 General data organization
    19.1 Basic format
    19.2 PACK format
    19.3 Error correction parity P
    19.4 Interleaving
    19.5 P-parity encoder and interleave sequence
    19.6 P-parity decoder and de-interleave sequence
    19.7 Error-correction parity Q
    19.8 Q-parity encoder
    19.9 Q-parity decoder
    20 ZERO mode (MODE=0, ITEM=0)
    20.1 General
    20.2 ZERO mode PACK format
    21 LINE GRAPHICS mode (MODE=1, ITEM=0)
    21.1 General
    21.2 LINE-GRAPHICS mode PACK format
    21.3 LINE-GRAPHICS mode FONT format
    21.4 LINE-GRAPHICS mode SCREEN format
    21.5 LINE-GRAPHICS mode colour table
    21.6 LINE-GRAPHICS mode instructions
    22 TV-GRAPHICS mode (MODE=1, ITEM=1)
    22.1 General
    22.2 TV-GRAPHICS mode PACK format
    22.3 TV-GRAPHICS mode FONT format
    22.4 TV-GRAPHICS mode SCREEN format
    22.5 TV-GRAPHICS mode instructions
    23 EXTENDED TV-GRAPHICS mode (MODE=1, ITEM=1 & 2)
    23.1 General
    23.2 EXTENDED TV-GRAPHICS mode PACK format
    23.3 EXTENDED TV-GRAPHICS mode FONT format
    23.4 EXTENDED TV-GRAPHICS mode SCREEN and MEMORY formats
    23.5 EXTENDED TV-GRAPHICS mode instructions
    24 MIDI mode (MODE=3, ITEM=0)
    24.1 General
    24.2 MIDI mode PACK format
    25 USER mode (MODE=7, ITEM=0)
    25.1 General
    25.2 USER mode PACK format
    26 CD TEXT mode (MODE=2, ITEM=1,2,3,5,6,7 or MODE=4)
    26.1 General
    26.2 CD TEXT mode for the lead-in area (MODE=4)
    26.3 CD TEXT mode for the program area (MODE=2)
    26.4 Mandatory, recommended and optical items
    26.5 Repetition rate and skew
    Annexes
    A (informative) Examples of the combination of the EFM-code with
                    3 extra channel bits
    B (normative) Abbreviations
    C (informative) Recommendations
    D (informative) Aperture specification or 8 cm - CD
    E (informative) TV-GRAPHICS mode implementation aspects
    F (informative) EXTENDED TV-GRAPHICS mode implementation aspects
    Annex ZA Normative references to international publications with their
             corresponding European publications
    Bibliography
    Figures
    1 - Pre-emphasis characteristics
    2 - Overall disc layout
    3 - HF signal
    4 - Typical shape of the RD signal used for tracking versus radial
         spot position
    5 - Transfer function
    6 - Eight to 14 modulation code (EFM code)
    7 - EFM conversion table
    8 - Frame format
    9 - Block structure
    10 - Column vectors
    11 - Parity check matrices
    12 - CIRC encoder
    13 - CIRC decoder
    14 - Example of encoding in channels P and Q
    15 - Example of encoding of table of contents with six tracks
         (program items)
    16 - Angular deviation
    17 - Operating conditions of disc
    18 - Time error versus modulation frequency
    19 - Basic format subcode channels R to W
    20 - General organization of a PACK
    21 - P-parity and interleave sequence
    22 - P-parity and de-interleave sequence
    23 - Q-parity encoder
    24 - Q-parity decoder
    25 - Block diagram of a video/graphics mixing unit
    26 - Example of encoding 3 bytes in 4 SYMBOLS
    27 - Text group and BLOCK structure
    28 - CD TEXT mode PACK format for the lead-in area
    29 - CD TEXT mode PACK format for the program area
    30 - Example of partial interleaving of PACKS
    31 - Maximum allowed mode transition skew
    D.1 - Adaptor including disc
    F.1 - Memory organization of EXTENDED TV-GRAPHICS
    F.2 - CLUT structure of EXTENDED TV-GRAPHICS
    F.3 - Relationship of colours between TV-GRAPHICS and EXTENDED
          TV-GRAPHICS

    Abstract - (Show below) - (Hide below)

    Defines parameters of compact discs that affect interchangeability between discs and players. Can also be used as a reference for disc/equipment manufactured to this standard.

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

    Committee EPL/100
    Development Note Also numbered as IEC 60908. Supersedes BS 7064(1989), 90/20095 DC & 96/205887 DC. (12/2005)
    Document Type Standard
    Publisher British Standards Institution
    Status Current
    Supersedes

    Standards Referenced By This Book - (Show below) - (Hide below)

    BS EN 61096:1993 Methods of measuring the characteristics of reproducing equipment for digital audio compact discs

    Standards Referencing This Book - (Show below) - (Hide below)

    IEC 61938 : 2.0 MULTIMEDIA SYSTEMS - GUIDE TO THE RECOMMENDED CHARACTERISTICS OF ANALOGUE INTERFACES TO ACHIEVE INTEROPERABILITY
    ISO/IEC 8859-1:1998 Information technology 8-bit single-byte coded graphic character sets Part 1: Latin alphabet No. 1
    IEC 61104:1992 Compact disc video system - 12 cm CD-V
    ISO 3901:2001 Information and documentation International Standard Recording Code (ISRC)
    IEC 60721-3-5:1997 Classification of environmental conditions - Part 3: Classificationof groups of environmental parameters and their severities -Section 5: Ground vehicle installations
    IEC 60068-2-2:2007 Environmental testing - Part 2-2: Tests - Test B: Dry heat
    IEC 61938:2013 Multimedia systems - Guide to the recommended characteristics of analogue interfaces to achieve interoperability
    ISO/IEC 646:1991 Information technology ISO 7-bit coded character set for information interchange
    IEC 61866:1997 Audiovisual systems - Interactive text transmission system (ITTS)
    IEC 60068-2-30:2005 Environmental testing - Part 2-30: Tests - Test Db: Damp heat, cyclic (12 h + 12 h cycle)
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