Before someone jumps on me for thinking I am pirating movies - I am not. Here is the deal. I have a Linux based DVR system. It has a 500 gig hard drive. What I do is when I buy a movie, I rip it and then convert it to DIVX. I put in on the DVR for future viewing.
In windows I use AnyDVD with DVD Shrink (this makes them 4.7 gigs) -- I store this on my NAS as a backup. I then use another program to make it into DIVX (DIVX create).
What's comparable on the Mac? Thanks!!