| General info : | | DVDs may use one code, a combination of codes (multi-region), every code (Region All) or no codes (Region Free).
DVD region codes are a digital rights management technique designed to allow film distributors to control aspects of a release, including content, release date, and price, according to the region.
This is achieved by way of region-locked DVD players, which will play back only DVDs encoded to their region (plus those without any region code).
However, region-free DVD players, which ignore region coding, are also commercially available, and many DVD players can be modified to be region-free, allowing playback of all discs.
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| Source : | | https://en.wikipedia.org/wiki/DVD_region_code (en.wikipedia.org/wiki/DVD_region_code) | |