I am trying to join several VOB files. They are relatively small, they come to less than 100 MB. I used VobEdit and IfoEdit, and following the "How to author & burn a DVD from VOB trailers/files guide", created a new file. The file created, however, doesn't play correctly. The video looks like it's going at about double-speed. And instead of audio, there is just loud noise, like if you had your TV tuned into a station that had signed off. Any ideas on what might be wrong?