Applications :: Using Mov Files In IDVD, No Sound And No Video Play After Burn?

I have 12 Videos in .mov format that I saved from .wmv format using quicktime and flip4mac. I have also tried saving them as AVI and same result.

Here's the problem, when I put them into iDVD and save as disk image to check, the videos are there, but no sound. I tried also burning them to DVD, using a maxell DVD-R 16x, and all the will come up on the dvd is the title menu. Movies will not play on my macbook or in the dvd player on TV. I tried using the .avi format but there still was no sound, and the movies were really choppy.

if i try to use iMovie, it will not even import these .mov files (doesn't let me click on them to import)

is there another format i need to export to, or change some setting to get the sound in my project, and get the movies to play have i burn them?

All the movies are approx 1hr long except one, and I was using the best performance setting putting 2 movies per dvd.