Open up Nero Vision and place your file into there, it will transcode and burn the file...The only problem I have had with Nero Vision is sometimes the audio is not in sync with the movie, which is a common problem apparently.
If you happen to encounter this you can decode the file using a program called Super and then transfere the file to Nero..
This link has some more info on it...
http://www.gnutellaforums.com/showth...ighlight=super
This is the reason I went back to using dvdsanta, it's alot easier....