I have put together a demo dvd for a band that I edited in iMovie and includes a separate audio track that I syncronized with the video. However, when I go to share it with iDVD, and then go to preview it in iDVD, the audio goes out of sync with the video after the fourth chapter marker. The audio seems to be lagging. I thought this was only a preview problem and burnt a copy to DVD, but discouvered that the DVD is burnt the same way as the preview and the audio goes out of sync with the video in the exact same place. What could be the problem? The video footage in iMovie was filmed with a Sony digital still camera in the video capture setting creating a MPEG4 video format. The audio was recorded from a mixer board that was running to an iMac using the program Audacity to capture the sound witch was then imported into iMovie. Everything was in perfect sync, and played just fine while previewing it in full screen mode in iMovie. But after sending it to iDVD was when the problem occured. The computer to do the final iDVD authoring was the one listed in my signature. Help me out please.