Problem converting a DVD made with a set-top recorder

Discussion in 'Professional Video Production' started by Jacques E. Bouchard, Aug 31, 2008.

  1. I have a friend who wants to post some footage from her acting workshop DVD
    on MySpace. There's something very strange about it, however. First of all,
    there's a VIDEO_RM folder (which I understand was created by a DVD
    recorder). Secondly, there seems to be something wonky about the sound: VLC
    won't play audio from the VOB files, Vegas won't play the audio track (even
    though it's right there on the timeline), and every attempt at
    demuxing/extracting/converting the audio creates a sync nightmare. Using
    DGIndex to demux the audio gave me a generic "audio error" message.

    I've tried re-authoring the DVD, which strangely inflated the size from a
    DVD-5 to a DVD-9 without re-compressing (AFAIK), but the new VOB files
    behave the same way as the old ones.

    What tools can I use to 1) diagnose what the problem is precisely, and B)
    fix it?

    Jacques E. Bouchard, Aug 31, 2008
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  2. Jacques E. Bouchard

    webpa Guest

    Might be that the disk has not been "closed" or "finalized". Some (if
    not all) set-top recorders require that the disk be "finalized" in
    some way, depending on the nature of the media (DVD-R is different
    from DVD+R is different from DVD+RW...DVD-RW...DVD-RAM). Some must be
    "finalized", some not. You may need to find exactly the same make &
    model machine as the original recorder to do the finalizing.
    Then....use WOMBLE MPEG-DVD (a mpeg2 editor) to rip the VOBs.

    Or, maybe its something else...Good Luck.
    webpa, Sep 1, 2008
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  3. I've played around with the DVD some more. I'm guessing something's wrong
    with the audio: each chapter (clip) starts out fine and gets increasingly
    more out of sync.

    The only solution seems to be to extract each chapter individually and
    re-sync in Vegas, or if I can figure out the change in rate I can do
    batch conversions (AC3->WAV) of all the audio files.

    Jacques E. Bouchard, Sep 2, 2008
  4. Jacques E. Bouchard

    flaco715 Guest

    Files on a DVD are for DVD players. VOB files will give you problems
    when trying to share video content with others, as most software
    programs CANNNOT play it back. DVD discs recorded on a DVD recorder or
    camera may have to be "finalized." The video from the resulting DVD
    should be "ripped," or extracted from the VIDEO_TS folder on the disc
    and converted into a more usable format, such as a Quicktime movie.

    I use a program called Cinematize 2 (for Macintosh). It lets you
    extract video and/or audio from a DVD that is not copy protected. You
    can even select only the section(s) you want, and also whether you
    want audio, video, or both. I don't know if they make that program for
    Windows. Once you have extracted the video you can upload it to your
    sharing site, keeping in mind that most services have file size and
    program length limits. Good luck!

    Rene Borroto
    flaco715, Sep 2, 2008
  5. Thhe problem is that every program I used for ripping leaves the sound out
    of sync.

    Jacques E. Bouchard, Sep 2, 2008
  6. I haven't tried a standalone player. My software DVD player plays it but it
    won't skip from one chapter to the next (I have to return to the main

    Jacques E. Bouchard, Sep 2, 2008
  7. I did not create the DVD, so I couldn't tell you about finalizing. What I
    did do, however, was copy it to my HD, and re-author. That did not fix the
    sync problem that I get whenever I try to extract the chapters.

    Jacques E. Bouchard, Sep 2, 2008
  8. I just drag-and-dropped to work on the files. I also re-authored using
    TMPGEnc DVD Author, which didn't fix the sync problem.

    Jacques E. Bouchard, Sep 6, 2008
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