411 REFERENCE · Wikibooks
Free Knowledge Culture Calendar/November 5
Reference material by Wikibooks contributors. This retains its source identity and is not 411 news reporting.
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Today in 2001 the first Audio CD was released that was intentionally corrupted for copy protection purposes, using a scheme called “Cactus Data Shield”, without properly informing users. Forced by disgruntled buyers, the Bertelsmann Music Group started replacing the disks two weeks later.
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