My free solution is to use imgtool to create an image from the folder, then use DVDDecrypter to burn the disk. There are alot of ways to do this without buying Nero so I'm sure others will give you options as well. Surf the websites listed here and you'll find something that works well for you.

Here's imgtool http://www.coujo.de/
There's actually a version now that'll burn them too. I guess I've got to spend some time checking this out.