• SN EN 60908 : 1999

    Current The latest, up-to-date edition.

    AUDIO RECORDING - COMPACT DISC DIGITAL AUDIO SYSTEM

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    Published date:  12-01-2013

    Publisher:  Swiss Standards

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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)

    Applicable to a prerecorded optical reflective digital audio disc system. Describes those parameters of compact disc that affect interchangeability between discs and players. Intended as a reference for manufacturers wishing to produce discs and/or players that conform to the system described in this standard. Deals with discs of 80 mm in diameter as well as those of 120 mm in diameter.

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

    Document Type Standard
    Publisher Swiss Standards
    Status Current
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