Converting old VHS/NTSC tapes to DVD

Discussion in 'Amateur Video Production' started by kolar, Dec 8, 2006.

  1. kolar

    kolar Guest

    When trying to grab some very old analog VHS/NTSC tapes from family
    archives, we obtained a maessage that states "Video stream contains
    copying protection information. Recording cannot be continued." The
    tapes were recorded in late 1980's using a camcorder, so they are NOT
    purchased copies of movies or similar.

    Could anybody offer some clue? Thanks in advance, JTK
     
    kolar, Dec 8, 2006
    #1
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  2. kolar

    Jukka Aho Guest

    You can thank the entertainment/movie industry and their lobbyists for
    this. Many consumer video devices these days try to detect whether there
    is Macrovision [1] or CGMS [2] protection present in the video signal.
    If there is, they won't allow you to record the signal. (Commercial
    video tapes have these signals, and DVD players generally output these
    signals for commercial DVDs, too.)

    Unfortunately, this detection is not too accurate: it might get confused
    if you're playing back an ordinary video tape which has degraded over
    the time. That seems to be the case here.

    There are special video processing devices which can clean up the signal
    so that it no longer has the characteristics that might trigger the
    behavior you've seen. See the following Google searches:

    <http://google.com/search?q=macrovision+remover>
    <http://google.com/search?q=video+stabilizer>

    _____

    [1] <http://en.wikipedia.org/wiki/Macrovision>
    [2] <http://en.wikipedia.org/wiki/CGMS-A>
     
    Jukka Aho, Dec 8, 2006
    #2
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  3. The tapes were so bad (or difficult to play back properly)
    that they displayed some artifacts that were interpereted as
    the Macrovision tags (artifacts). Modern equipment detects
    these Macrovision artifacts and refuses to record, thereby
    protecting the garbage that comes out of Hollywood. :-(

    Solution: There are several ways to clean up the video
    (and defeat Macrovision in the process). These range from
    inexpensive "sync regenerators" (some openly sold as
    'Macrovision defeat' gadgets) to time-base correction
    (TBC) boxes. Some consumer devices like the Canopus
    ADVC-300 have TBC functionality built-in and were made
    specifically for the kind of capture you are trying.
     
    Richard Crowley, Dec 8, 2006
    #3
  4. Sounds like the video on the tapes is so unstable that the capture
    device thinks they are Macrovision-encoded. A good time base corrector
    will clean that right up.
     
    Scott en Aztlán, Dec 12, 2006
    #4
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