Hey Eveyone, been on CD Freaks for a while now but not been arround as ive not had any problems to report. The current problem is backing up Resident Evil : Apocalypse. All other DVD's in my collection seem to have been backed up ok and in the last few days have backed up a number of films. Today however ive encountered the INVALID DVD NAVIGATION STRUCTURE error when trying to OPEN DVD. Im going to try some differnt software but as im familuar with as well as impressed by the results ive achieved with DVD Shrink i would prefer to stick with it. Can anyoe here cast some light on this error ?