I converted an avi to dvd using tmpgenc. The avi is 700MB but after i converted it was 4.2GB. I loaded it into Ulead DVD Moviefactory 2 and it says the movie is 4 hrs long. I prviewed it in DVD Moviefactory 2 and it has about 2 and a half hours of just a blank screen. Should i just burn it or cut it with TMPGEnc or what?