Actually the disc cleaner is a very good idea.
About the claim that you say DVD95 says about their "newest version guarantees XBOX/PS2 compatibility". Thats just a sales pitch. Anyone can make their movies more compatible. Just make sure you have an AUDIO_TS folder. A lot of movie editors/makers dont add that folder. But you should know that some some standalones actually look for the AUDIO_TS folder. Just so you know,
PS if you need help/tips in backing up dvd movies post a question in the DVD Backup Forum.
Tyler!