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Blue Ray & DVD-R - Differences

Discussion in 'DVD±R for advanced users' started by Oriphus, Jun 9, 2003.

  1. Oriphus

    Oriphus Senior member

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    Here is a bit of information about the differences between Blue Ray and Current DVD-R systems. Tosca - have a read!

    DVD-R

    Parameter Ver 1.0 Authoring use General use
    Number of Sides 1 or 2 1 or 2  
    Capacity (GB) 3.95  4.7   4.7 
    Recording method Organic dye layer 
    Laser wavelength 635/650nm 635nm 650nm
    Min pit length (microns) 0.44 0.40 0.40
    Track pitch (microns) 0.80 0.74 0.74
    Laser wavelength 635/650nm 635nm 650nm
    Pre-pit addressing increment increment decrement
    Serialisation for CPRM   No Yes
    Pre-recording   No Yes
    Track format Wobble pre-groove 
    Modulation & error correction 8 to 16 & RSPC 



    Blue Ray

    Recording capacity: 23.3GB/25GB/27GB
    Laser wavelength: 405nm (blue-violet laser)
    Lens numerical aperture (NA): 0.85
    Data transfer rate: 36Mbps
    Disc diameter: 120mm
    Disc thickness: 1.2mm (optical transmittance
    protection layer: 0.1mm)
    Recording format: Phase change recording
    Tracking format: Groove recording
    Tracking pitch: 0.32um
    Shortest pit length: 0.160/0.149/0.138um
    Recording phase density: 16.8/18.0/19.5Gbit/inch2
    Video recording format: MPEG2 video
    Audio recording format: AC3, MPEG1, Layer2, etc.
    Video and audio multiplexing format: MPEG2 transport stream
    Cartridge dimension: Approximately 129 x 131 x 7mm


    [bold]You see the potential?[/bold]
     

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