Audio fine on iDVD but goes out of synch once burned via iMovie

Discussion in 'Apple' started by Ronald Epstein, Feb 22, 2008.

  1. Ronald Epstein

    Ronald Epstein Administrator
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    Having a persistent problem that is causing me to buy a lot
    of expensive DVD+R DL discs.

    I imported my movie in iMovie '06. I prefer to use that program
    over '08. I added music throughout, and since my project was large,
    by the time I imported it to iDVD I had to burn it to a DL DVD rather
    than a regular one.

    Before burning, I check that the music is qued properly and that
    everything is in synch. However, after the DVD is burned, the voice
    and audio track is about 1 second out of synch. The music track is fine.
    It's a very noticeable problem.

    I'm looking at the original file I have on my hard drive on iDVD and it
    plays completely in synch. Why is it going out of synch when burned
    and how do I prevent the burning process from manipulating the track?

    I am guessing the problem could be the double layered DVD and the
    fact that it has to switch layers which causes the audio track to go out of synch.

    I had this problem before and went through multiple burns and expensive
    DL DVD discs before I got two that synched properly.

    Any thoughts? If anyone has a fix, please be specific. Thanks
     
  2. JohnRice

    JohnRice Lead Actor

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    Just to clarify Ron. Are you saying it is in sync until the layer change?

    I've never used these apps, but I understand you create the movie content in iMovie, then the menus and dvd mastering in iDVD. How do you burn the actual VIDEO_TS to DVD once that is done? Have you tried doing that with Toast in the Data>DVD-Rom (UDF) mode?
     
  3. Ronald Epstein

    Ronald Epstein Administrator
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    Okay...

    Yes, the audio goes out of sync 3/4 way through the DVD
    which tells me it's a layer change problem.

    However, testing this disc out on 3 DVD players including my
    Mac, they all exhibit the delay so it's not related to a particular
    player and the screw-up is being done within the conversion
    process from iMovie to iDVD.

    To answer your question further, you make the movie in iMovie
    and import it to iDVD where you do the menus. It is iMovie that
    lets you burn to DVD. If the project is too big it does not give you
    the option to compress to DVD. It just tells you to use a DL DVD.

    Perhaps if I could find a way to compress the video somewhat
    so I don't have to put it on a DL DVD. I'd be willing to sacrifice
    a little quality to obtain a video that syncs properly.
     
  4. JohnRice

    JohnRice Lead Actor

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    Just to trouble shoot a bit more. At some time you must have the option to produce a regular DVD format VIDEO_TS folder which can be played directly from the HD with DVDPlayer. Before you burn the disc. Giving you to opportunity to check the sync before burning. I'm just trying to understand exactly where the problem is introduced and recommend a way around it.

    For re-compression, there are DVD2One and DVDRemaster available for a few $. Both of these apps are strictly for requantizing unencoded material, and in no way violate discussion rules of HTF on copying, since they are incapable of decrypting commercial DVDs. They will let you squeeze the disc to single layer though.
     
  5. Ronald Epstein

    Ronald Epstein Administrator
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    John,

    From research I have done on the net this seems to be
    a common problem possibly related to iMovie '08.

    People are actually switching back to iMovie '06, which
    I tried to do by installing my CD of iLife '06. Problem is,
    you can't install '06 once '08 is installed.

    I'm going to try and install iLife '06 in another location.
     
  6. JohnRice

    JohnRice Lead Actor

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    OK Ron. I was just thinking possibly if you can have iDVD produce a finalized DVD fileset, you could possibly use Toast to burn the DVD and avoid the problem.
     
  7. Ronald Epstein

    Ronald Epstein Administrator
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    Hmmm. Good idea. I have to figure out if iDVD will save in
    a format that Toast can burn.
     
  8. DaveF

    DaveF Moderator
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    If you export a Disk Image from iDVD, does it have the same synch problem? (the few DVDs I've made, I exported a disk image (.iso I think) and then burned them with Disk Utility). This Disk Image can be mounted and played as if it's a DVD by OS X.
     
  9. JohnRice

    JohnRice Lead Actor

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    There is a defined DVD fileset (VIDEO_TS FOLDER contining various files and possibly an AUDIO_TS folder, which is empty) that is the defined format. You then burn it with toast in Data>DVD-ROM (UDF) format.

    Dave's suggestion also works. Technically, disc utility doesn't burn Video DVDs in the proper (UDF) format, but these days virtually all players play them anyway. Older players may be hit and miss.
     
  10. Ronald Epstein

    Ronald Epstein Administrator
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    Before I left for work this morning I had iDVD burn a disc
    image to my computer. When I get home I'll look at it.

    If the audio goes out of sync on the hard drive then it is
    definitely the fault of iDVD '08.

    If the audio is fine, then it's still the fault of iDVD '08 burning
    to a dual-layered DVD. If that is the case, I'll first try to remedy
    the problem by burning at 1x instead of maximum setting. Perhaps
    a slow burn will ensure efficiency. Who knows.

    Now per John and Dave's suggestion....

    If the image on my hard drive is perfect, how exactly
    do I burn it to a DVD using Toast? Let me know the location of
    the files I need.

    Will Toast automatically figure out I have a blank DL DVD
    or do I need to go into settings to tell it that?

    Sorry for stupid questions, but I'm just....well....stupid when
    it comes to this. I appreciate the education.
     
  11. Ronald Epstein

    Ronald Epstein Administrator
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    Image file created. How do I play it to check?

    I got AUDIO_TS and VIDEO_TS folders.
     
  12. David Rubenstein

    David Rubenstein Stunt Coordinator

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    Drag the video_ts folder to Toast Video_ts folder screen. Then just click the Green button and it should burn without a hitch.

    This is how I make all of my DVDs
     
  13. DaveF

    DaveF Moderator
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    Run Disk Utililty (Spotlight it) and then do File->Open Disk Image and select your disk image to get it going. It should appear as a regular disk that DVD player can run.
     
  14. Ronald Epstein

    Ronald Epstein Administrator
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    DaveF,

    Finding Disk Utility was a snap. I mounted the image but couldn't
    figure out how to get it to play. Then, for the heck of it, I just launched
    the DVD player and voila! the image played.

    Unfortunately, the image on the hard drive is MORE out of sync
    than it was on the burned DVD.

    So, David R, I doubt burning the image to toast is going
    to provide any improved results.

    The problem seems to be iMovie '08 and the conversion process.
    This seems to be in line with what has been reported elsewhere.

    Problem is, I can't install iMovie '06 unless someone knows a trick
    on how to do it.

    I DO HAVE AN IDEA!

    I can partition the drive. This would allow me to install iWorks '06
    to the new partition.

    What do you guys think? I'm going to need instructions how to do
    this. I'm certain it's in Disk Utility. I need specific instructions
    and a suggestion of how big to make that partition (100 GB?)
     
  15. DaveF

    DaveF Moderator
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    Sorry to hear it's a creation process. Do you need iMovie 06 or iDVD 06? iMovie 06 should be a snap, as Apple specifically provided that for use in conjuction with iMovie 08. iDVD 06, I don't know.

    Is it possible to fully uninstall iLife 08 and then install iLife 06?

    Paritioning is not hard, but you have to pay attention -- it is possible to destroy your data! And you use Disk Utility, as you thought. You select the drive of interest and use the "Partition" tabe. But I can't give more detailed instructions; I don't know the process well enough to know I'd give safe directions.
     
  16. Ronald Epstein

    Ronald Epstein Administrator
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    Sorry, stupid me confused iMovie with iDVD.

    It's iDVD and you can't completely uninstall iWorks '08
    and replace with '06 without programs not launching.

    I'm gonna take the risk and try to add a 100gb partition
    and install iWorks '06 to that.
     
  17. Ronald Epstein

    Ronald Epstein Administrator
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    Well, I learned how to create a new partition without erasong
    any existing data.

    Boot computer with Leopard install disc while holding "C" key

    Go to Disk Utility in top menu bar. There you can add a partition
    without erasing data.

    Unfortunately, this did not help the situation. iLife and its components
    will only install to startup drive -- not a secondary partition.

    I need to find a way to uninstall iLife '08 and go back to iLife '06.

    This is going to be tough cause APPZAPPER doesn't cut it.
     
  18. DaveF

    DaveF Moderator
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    Can you use TimeMachine to go back to a pre-iLife 08 period? I don't know how sophisticated TimeMachine is in restoring applications. Maybe?

    You mentioned that the Voice & Audio are out of synch but Music is fine. Is there a way to make all the audio "Music"?

    Can you convert the audio to 16-bit audio and then re-import it into your project?

    Hopefully someone out there has a proper solution.
     
  19. JohnRice

    JohnRice Lead Actor

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    Sorry nothing worked Ron. One possible outside chance is that the problem is caused in the disc image stage the same as burning the disc. Probably not, but maybe.

    Anyway, good to know you can now partition a drive without erasing all contents. That must be a new feature in Leopard, since it's never been possible before.
     

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