a burning question

Well I am about to download the suse 6.4 evaluation .iso and I am wondering
if anyone knows the difference between the eval disc and the full disc. I
want to judge it fairly against mandrake and redhat which give me the full
version in a free download. Also, I know enough about burning CD's to be
dangerous. How do you burn a Linux .iso so it is bootable? Thanks for
addrsssing my newbie questions.

- Joel