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== Region codes ==
: {{merge|DVD region code}}
Each DVD-Video disc contains one or more region codes (sometimes called zones), denoting the area(s) of the world in which distribution and playback are intended. The commercial DVD-Video player specification dictates that a player must only play discs that contain its region code. In theory, this allows the motion picture studios to control the various aspects of a release (including content, date and price) on a region-by-region basis. In practice, many DVD players allow playback of any disc, or can be modified to do so. Entirely independent of encryption, region coding pertains to [[regional lockout]], which originated in the [[Computer and video games|video game]] industry.
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