Copy Protection: Difference between revisions
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** Amusingly, United States courts have ruled that copyright traps are not, themselves, copyrightable, because to let them be so could a produce a [[Logic Bomb]] situation where an error in listing facts (which themselves are not copyrightable) might result in copying a "false fact" which itself would violate copyright.
* Similarly, dictionaries, encyclopedias and other reference works may include [[w:Fictitious entry|fictitious entries]] intended as copyright traps. For instance, in 2005 the ''The New Oxford American Dictionary'' included an entry for the non-existent word "esquivalience", defined as "the willful avoidance of one's official responsibilities", as an explicit copyright trap.
* Copy-Protection on [[Betamax]] and [[VHS]] were used by security service like [[w:Macrovision|Macrovision]] to prevent piracy for movies. The first movie to have a home video release to be Copy-Protected was the crime drama [[The Cotton Club]]. Copying the Betamax or VHS tape would cause the screen to scramble and would make it unwatchable. Modern days, They have a chip-in to detect that it's copy-protected and would stop the recording.
* Copy-Protection on [[Laserdisc]], [[DVD]], and [[Blu-Ray]] had been quite common for many movies and shows to prevent viewers from making bootleg copies.
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