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Dolby Vision Single Layer Rips Compared to Dual Layer

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    #1

    Dolby Vision Single Layer Rips Compared to Dual Layer

    Maybe someone can chime in here.
    Looking at the bitrate of the single layer files DVDFab is creating there is a loss of bitrate about equal to the 2nd enhanced DV layer.

    Test I just did here are the results.

    UHD Bitrate from full disc:
    Video: HEVC Video / 64255 kbps / 2160p
    Video: HEVC Video / 7742 kbps / 1080p


    DVDFab Single Layer File:
    Overall bit rate : 65.0 Mb/s
    Video Bit rate : 64.3 Mb/s


    DVDFab Dual Layer File:
    Overall bit rate : 72.7 Mb/s
    Video #1 - Bit rate : 64.3 Mb/s
    Video #2 - Bit rate : 7 743 kb/s



    So what is happening to the missing bitrate in the single layer files?
    Are we actually losing all of that data making single layer files, if so this isn't truly keeping the DV enhancements intact?
    Last edited by Angryunibrow; 11-20-2019, 08:21 PM.
    Tags: None
    #2
    Hi Angryunibrow,

    The single layer rip is 10bit with DV,
    While the dual layer rip is 12bit (two streams) with DV.

    And the 2nd enhanced DV layer is the difference between 12bit and 10bit，it is not DV data.

    yours,
    Wilson
    Please post your logs the default location is:
    For DVDFab 13: C:\Users\User Name\My Documents\DVDFab\DVDFab13\Log
    For StreamFab: C:\Users\User Name\My Documents\DVDFab\StreamFab\log
    Please use attachment button and attach your most recent, Internal log and post right here.
    If it's the burning issue, please also attach burn log.

    Thanks!

    Comment

      #3
      I guess I do not understand the difference.
      Are we losing quality and is the Dolby Vision kept in tact in the single layer files as it is in the dual layer files?

      The loss of bit rate is concerning.

      Comment

        #4
        Hi Angryunibrow,

        Dolby Vision is the same in the single layer files as it is in the dual layer files ,
        bit rate is caused by 10bit vs 12bit. simpile is 12bit use more space keep colors.

        yours,
        Wilson
        Please post your logs the default location is:
        For DVDFab 13: C:\Users\User Name\My Documents\DVDFab\DVDFab13\Log
        For StreamFab: C:\Users\User Name\My Documents\DVDFab\StreamFab\log
        Please use attachment button and attach your most recent, Internal log and post right here.
        If it's the burning issue, please also attach burn log.

        Thanks!

        Comment

          #5
          Originally posted by Wilson.Wang View Post
          Hi Angryunibrow,

          Dolby Vision is the same in the single layer files as it is in the dual layer files ,
          bit rate is caused by 10bit vs 12bit. simpile is 12bit use more space keep colors.

          yours,
          Wilson
          ok this makes sense, thank you for the explanation

          Comment

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