Nero Vision 4 was perfect for awhile in that it allowed me to add vob files, select clips, and export them to mpeg with extremely high quality. Unfortunately, version 4.5 loused everything up and reverting to previous versions hasn't fixed it. Whereas before, when I added a vob file (Say "In Living Color" Disc 1 side A, it would see anywhere from 10 to 15 video segments, now it sees it as 1000's of mpegs which makes any editing a nightmare. And since it's a Nero product, getting support is just unthinkable.
I've auditioned about 10 different programs recommended at VideoHelp.com but none of them have worked as needed. Sometimes they can't open the file, open the file but only see 50% of the length, convert the file to mpeg and then edit (Quality drops significantly in the process), lose audio snyc, or can't play the audio while previewing (AC3.)
I've tried these (Some were for dvd backups, but everything is blurring together for me due to frustrations):
InterVideo WinDVD Creator 2