Thanks so much for replying! I downloaded and installed ffmpegX (awesome program), and it seemed to let me convert the iTunes videos, but nothing would open them (I tried QuickTime and iDVD). Then I tried converting some old mpeg videos from a couple years ago, and those converted fine -- AND...
Seems I have the exact opposite problem of many: I want to convert video *from* mp4/m4v *to* "normal" DVD-video.
Specifically, these are TV shows I downloaded from iTunes. I want to burn them to a DVD so I can play them in in my regular DVD player connected to my television.
I've searched...