Use dvd43 to get around the DVD encription.

I use OneCopy DVD to rip DVDs. That is because I have to compress dual layer DVDs to get them onto a single layer DVD if I want to burn the information later. If you're going to keep teh files uncompressed on your hard-drive (recommended), then Handbrake will work just fine.

Be prepared to spend some time (10 mins per DVD) and also be prepared to spend some money on a decent sized hard-drive and a back up drive, just in case.