Non-CD CDs

The music industry isn't going out of its way to endear people to itself, is it?

From MacinTouch:

Apple has updated two Knowledge Base articles about copy-protected CD problems with iTunes:

iTunes: Unable to import copy-protected audio discs
iTunes is unable to import ("rip") tracks from certain audio discs that have a copy protection system.

Cannot Eject Copy Protected Audio Disc, Computer Starts Up to Gray Screen
A small number of audio discs use a copy protection technology that can prevent the disc from being read by a computer. This may also prevent the disc from being ejected. The audio discs are technically and legally not Compact Discs (CD format), and the CD logo has been removed from the disc. In the logo's former place is the printed message:
"Will not play on PC/Mac"
This appears both on the cover and on the disc. Inserting this disc in a computer may cause the system to stop responding. It might not be possible to eject the disc on computers without a manual eject hole.

I've not experienced this problem (the stuff I like is too obscure for major record labels, the ones who are most likely to implement copy protection) but it does indicate the complete and utter cluelessness of the music industry.