Plus, I was under the impression that CD-RW was topped out at like 24x and it was CD-R at 52x. The issue here are the many reports of CD-Rs cracking/shattering when spun at such high rotational speeds. The other issue is media. I don't know if they even make CD-RW (if you are talking specifically about -RW) media rated for more than 24x.
\Dan