Okay, so I'm exporting my flash movie to Quicktime. In the video section, I have MPEG 4 selected. However, when I launch the movie in Quicktime, the animation doesn't play. Anyone know what's going on?
While I have had little experience moving Flash animations into MPEG4 format I am wondering why not just let the encoders in iDVD do the heavy lifting? The output from Flash can be a selection of different file types, why not use one that is a little more cooperative and then when outputting the file from iDVD, to create your burn file to DVD, let the encoders in iDVD do that job. When I look at the throughtput of a workflow I always try to keep file conversion native to the software best able to handle it. Obviously the MPEG4 output from Flash is giving you problems, so output it in Quicktime as a .mov and import it into the timeline in iDVD. It will do the encoding for you and give you a tidy MPEG4 output that burns to DVD easily.
This process is usually easier if you run the video timeline through Premiere, Final Cut, or iMovie first just because those programs ae meant to aid you in this process but an output from Flash directly to iDVD should work in a .mov format.
Give it a shot and good luck,