Hard-core computer guys will find this interesting, the rest of you risk your eyes glazing over.
Synopsis: record companies are bundling DRM software on CD's, but not telling you about it, and you couldn't remove it even if you knew it was there. This s/w embeds itself in the Windows OS & registry and hides itself in the same fasion that the virus/malware/spyware guys do,
and it needlessly sucks up CPU from then on. When the author disabled the malware (spade == spade), it disabled the CD device.
So if you
buy a legit CD, and try to play it on your PC, you risk hosing your OS. This exploit even set itself up to run in Safe Mode.
http://www.sysinternals.com/blog/2005/10/sony-rootkits-and-digital-rights.html