Anyone having Problems with iDVD & Snow Leopard?

Discussion in 'Digital Video' started by Flynnstone, Nov 30, 2009.

  1. Flynnstone macrumors 65816

    Flynnstone

    Joined:
    Feb 25, 2003
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    #1
    I've had some weird behavior with iDVD on Snow Leopard.
    Green screen & gibbled video.
    I upgraded my MacBook to Snow Leopard. Its presently a guinea pig.
    It was over an hour to generate a DVD with above a minute of content.
    The fans were running fairly hard, but the CPU meter was <10%.

    Anyone else having trouble with Snow Leopard & iDVD?
     
  2. xStep macrumors 68000

    Joined:
    Jan 28, 2003
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    Less lost in L.A.
    #2
    You haven't given any details.

    Does QuickTime Player exist in the Utilities folder?

    What are the file formats you are passing to iDVD for encoding?
     
  3. Flynnstone thread starter macrumors 65816

    Flynnstone

    Joined:
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    #3
    Quicktime Player is in the Applications directory.
    File format.. ?
    Used iMovie '09 ->Share (menu) -> iDVD. So I don't know the format.
    I wish it just sent over the DV file, but ...
     
  4. xStep macrumors 68000

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    #4
    When I asked about QuickTime Player, I should have been clearer. Do you have QuickTime Player version 7 in the Utilities folder? By default, the older player, version 7, is not installed in Snow Leopard and I am wondering if this might have an influence to your problem. I don't know that it does or doesn't. It can be installed via the install DVD. I can't recall the instructions, but a Google search should come up with an answer.

    Since you are using the Share method, I believe the format is a QuickTime .mov file using the Apple Intermediate Codec (AIC). Well, if I recall right.

    What is the source material format? From a camera, from an AVI file, from a downloaded video?

    Format is a general word that means a collection of things for digital video. First is the container file format being used. This is often described by the file extension such as; .dv, .mov, .avi, etc. Second is the codecs used for the video and audio. See this wikipedia entry for general description of codec.

    An answer I might get when asking someone what format is the video file they have is; A QuickTime .mov file with H.264 video encoding and ACC audio encoding.

    Other questions. Is your software all up to date? Are you mixing format sources in your project? Does any of the source material have any problems when played individually?

    You have the type of problem that is very difficult to debug.
     
  5. Flynnstone thread starter macrumors 65816

    Flynnstone

    Joined:
    Feb 25, 2003
    Location:
    Cold beer land
    #5
    This is a fresh install of Snow Leopard. I had to repartition the drive.
    I looked in Utilities folder, and no Quicktime.

    AIC, I wondered why it couldn't just use the DV file but ...
    Is there any visual loss going from DV to AIC?

    Source is from a Sony miniDV camcorder. So source is DV. In a mov file , I believe.
    I don't know what iMovie does for transition effects.

    Software is up to date. Fresh install of Snow Leopard, followed by iLife & iWork. I got the Mac Box Set. Then did Software update to be current.

    I'll try playing source via finder.. quicktime.

    Yep a problem. But, apparently, I'm not the only one with this problem.

    Does Quicktime do the conversion from DV/AIC to MPEG-2 for the DVD?
     
  6. xStep macrumors 68000

    Joined:
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    #6
    Technically, when working with lossy codecs, change from one to another is going to cause some quality loss. You may not notice it though.


    It looks like iMovie 09 only writes meta data regarding the transitions to its project file, and only physically writes them for exports.


    Are you saying you tried the playback test and found an issue, or that you have found other references to the problem you discribed above.


    I'm sure QT is involved in that conversion somehow. At least in the reading of the source. Apple has not released general access to the MPEG-2 encoding software.
     

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