I'm using MacTheRipper to backup one of my DVD's, and it seems to be taking a long time to rip. It takes about 45 to 60 min. to rip just the main feature. I am using a 12" Powerbook 1.5 Ghz with 8x Superdrive. It seems like this is a rather large amount of time to rip a dvd. Anyone have any ideas on this ?