Check out CDBurnerXP. Despite the name, it should work on Vista. It's free and fairly Nero like before they started adding huge amounts of bloat to it in version 6.
Otherwise there's Alcohol 120% which probably has more features, but it's not free. Your call. I generally avoid Roxio as much as possible since it's just as bad as Nero, only in different ways. Can't think of any other general purpose CD/DVD burning programs.
I am upgrading my computer from Windows XP to Vista. Does anybody know of a version of Nero that is not so huge? Vista won't except my Nero 6. So what is the smallest version of Nero Cd/Dvd burning software that Vista will accept? I greatly appreciate and help and many thanks. Jenny