Some PCs crashed. Macs locked up and were impossible to reboot, in some cases requiring dealer repairs, according to Apple. A nefarious new virus? Guess again. The culprit was the European release of the latest Celine Dion CD, which used copy protection to render the disc unplayable on anything but a stereo. Meanwhile, stateside PC users who like a little background music have been stymied by recent CDs from Charley Pride, 'NSync, and others. Few PCs crashed, but the copy protection on the discs sometimes prevented CD players or car stereos from playing them, as well. And Hollywood's recent campaign against digital copyright infringement is not limited to music CDs; it affects the way you use your PC as well as the devices that talk to it.

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