Clone Cd is cool, but I like Blindwrite better, if you are looking for an alternative. It configures itself, and has a very simple interface too. It also isn't recognised as CD/DVD "emulation" software, which is good, because some apps and games these days force you to uninstall them before you can run them - Doom 3 is a good example. Not sure if it detects Clone Cd or not.
Potentially subversive message: highlight to read!
I have also found Blindwrite to be by far the best cd copier to get around Cd protections.