CD's now protected against felt-tips?

[Class316]

"Midbar, the Israel-based company that makes copy-protection technology for audio CDs, said on Monday that its products are now to be found in more than 30 million CDs worldwide, with 10 million of those in Japan. Separately, the company said it has fixed a glitch that allowed consumers to circumvent its copy protection using a felt-tip pen.

"Midbar makes the Cactus Data Shield (CDS) line of copy-protection technologies, which scrambles CD data in such a way that it can be played on an audio player, but can't be copied by a PC. Copy-protection schemes such as CDS and Key2Audio are highly controversial, however, with some protected CDs having been found to cause glitches in some ordinary CD players, and to cause some computers--particularly Macintoshes--to crash...

http://msnbc-zdnet.com.com/2100-1103-955771.html

http://www.theregister.co.uk/content/6/26839.html