Make Your Own Copy Protected CD
Here’s a great gift idea just in time for the holidays: Make your friends and relatives their very own copy-protected CDs using the same industrial-grade passive protection technology built into XCP and Macrovision discs.
Passive protection exploits subtle differences between the way computers read CDs and the way ordinary CD players do. By changing the layout of data on the CD, it’s sometimes possible to confuse computers without affecting ordinary players — or so the theory goes. In practice, the distinction between computers and CD players is less precise. Older generations of CD copy protection, which relied entirely on passive protection, proved easy to copy in some computers and impossible to play on some CD players. For these reasons, copy protection vendors now use active protection — special software designed to block copying. Freedom to Tinker » Blog Archive » Make Your Own Copy-Protected CD with Passive Protection
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