From Boing Boing: Can DRM be future-proof?:
Princeton’s Ed Felten and Alex Halderman continue to pre-publish sections from a major paper on the lessons to be learned from the Sony DRM debacle, in which it was discovered that the music label had deliberately infected its customers’ computers with malicious software that spied on them, destabilized their computers, and exposed them to attack from other malicious entities. The software had no easy means of de-installing it, requiring many music fans to reinstall their operating systems.
Earlier I posted what CDs to watch out for.