Recording Device

I'm working on some new vidoes and I want to start using a recorder to record games like kh1 & 2 and the final fantasy games. But I don't know what to use. I've heard alot of stuff. Some people say they use dvd recorders and some use capture cards and some use their camcorders. I could use your guys's help. If you can, tell me your idea on what I should use and give places or links to where I can buy the recorders. Thanks.