[mud ver.2]

What program are you using to burn ? Clone cd ? Nero ?

I use Clone CD, and have made 700mb+ back-ups with no problems.

Also, keep in mind that some games have copy protection code on them, like EA games. For those, you'll have to apply a patch to the image before buring it.

(You may already know all of this, but I figured I'd throw it out there.)