It is possible but you have to watch out for, dvd copyrights and dual layered dvd's.
Most copyrights can be overiden by just playing the entire movie on your PC, then copying.
For Dual layered dvd's you will need to rip them to fit onto 2 discs. You will also require a lot of Harddrive space for this around 8 gigs or more.
This is just a little something for you to mull over.
Tyler!