Sounds out of sync?

When I convert an AVI to DVD the sound is out of sync. I have tried several different videos all don’t work.

I have tried saving them to PC and even then the sound is out of sync by 30 seconds or so.

Do a search for threads about out of sync audio. There are literally hundreds of threads. You will probably find something there, which might suggest using another utility to convert the .avi first, Nero seems to have a small problem with .avi files.