will persist into the DVD burner. I hope you prove me wrong.
For what it is worth... thinking positively, after the DVD is burned, you'll want to rip it. The video and audio will come together in the ripped file.
I like HandBrake from www.handbrake.fr - there are a few others. Use the presets for output. Normal to MP4 gets you a file that will drag/drop to iMovie or Final Cut.