Well, that didn't take long.

A computer security firm said on Thursday it had discovered the first virus that uses music publisher Sony BMG's controversial CD copy-protection software to hide on PCs and wreak havoc.

When the CD is played on a Windows personal computer, the software first installs itself and then limits the usage rights of a consumer. It only allows playback with Sony software.

The software sparked a class-action lawsuit against Sony BMG in California last week, claiming that Sony BMG had not informed consumers that it installs software directly into the "root" of their computer systems with rootkit software, which cloaks all associated files and is dangerous to remove.

So, Sony created something which is impossible to detect, prevents playback on Windows based PCs (unless Sony software is used), and now is a great vector for introducing viruses which are hard to detect and eradicate. Remind me to never buy a Sony CD, ever (although I think I already did, BMG is owned by Sony I believe, and that's the silly music club that i subscribed to years ago and occassionally will get hits such as 'best of the bee gees volume 29'.). ANyway, way to go Sony. If this were a Law and Order episode, they'd be charged with criminally negligent destruction or something.