Need Serious Help...I'm a... BEGINNER.

OK. Here the deal. I need to know how to burn Dreamcast games. I have a DVD ROM drive and a CD-RW. I have a 56K modem. Right now all I wanna do is copy all of my games. (My parents are divorced and I have a DC at both places.) It would be nice to download games to but right now I'd settle for just being able to back up my games.