Some questions, locotus
1. 3 movies are usually too much for a dvd. AVStoDVD should have informed you about it by turning red the dvd size bar. Doesn't it?
2. If you do not want to delete temporary process files (m2v, ac3, etc.), click "Settings"/"Misc" and uncheck "Delete temporary process files". Did you do that?
3. Could you post here the log file created by AVStoDVD, which contains a lot of details about your encoding?
4 Are you the dark side of Captain Picard?
Btw, I will add a check to authored filesizes before burning them to dvd.
Bye