I have 18 41 minute .avi files that I want to burn onto as few dvds as possible. They are all about 350mb. For some reason, virtual dub won't let me combine them. I get a message when I first open one of them, saying it has detected an improper VBR audio encoding and will reqrite the audio header with standard CBR values. Then when I try to append the next file, it says they have different audio streams. So I tried using Windows Movie Maker to combine them, but I can only fit 3 avis on each dvd if I do it that way for some reason.(after combining with wmm I convert to DVD with cucusoft, then use IFOedit to author the dvd, and then nero to burn it) What can I do to get more than 3 on each disc?