Sony BMG now says they used another digital rights management (DRM) scheme on other music CDs. This software, SunnCom MediaMax 5, also has a bug that may allow for privilege elevation. Sony and SunnCom have provided a patch, but independent security researchers say the patch itself has problems and you shouldn't use it. The list of bad CDs is at http://www.sunncomm.com/support/faq/releases.asp, (there are some Britney Spears CDs on the list, so the title is appropriate) although it may be more effective to just avoid Sony altogether. The Electronic Frontier Foundation has a FAQ page with many details at http://www.eff.org/IP/DRM/Sony-BMG/mediamaxfaq.php#2.
"A sinister cabal of superior writers."