DVDFab works really great. Haven't come across a DVD yet that it wouldn't rip. You can also save to almost any format (DVD, psp, Nintendo DS, iphone, zune, xbox 360, etc)
I've been wondering about this as well. I have a hangup about plopping movie discs into my CD-ROM, I'm afraid it will burn out the laser over repeated use (I always have movies running as I work)... right now I have Direct TV going right into one of my PC's at work. BUT, I would love to be able to rip hundreds of DVDs so I can simply run them on the PC without using the CD-ROM. Will DVDFab do this? Where is it for sale?Or, what is the best program to do this?