If I'm thinking correctly, the basic version only comes with the EZCD and CD copier modules. No DirectCD, MP3->Audio, MP3 encoder(?), and the other frilly things. If all you need is the EZCD module and your CDRW drive didn't come with Roxio and you want it, this looks like a good cheap investment.
edit: oops, don't listen to that ranting madman tenchim since he obviously doesn't know what's he's talking about. 😛 Follow yellowperil's link for the real info.