I am pretty sure under copyright laws you are entitled to make 1 backup CD/DVD for your own use provided you own the original disk. That does not help with scratched hire movies though.
I think you are right. I misinterpreted the advice I was given. You can "format shift" videos to DVD, you can copy music files to MP3 format for your own use but you cannot backup DVD's even for your own use.
Appologies.
I think you'll find that any sort of copying, reverse engineering (Reauthoring, shrinking etc), format changing, is technically illegal for all copyrighted material. It's just that home backups have been "tolerated" as long as you have purchased the original and do not pass it on to a third party.