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2. DVD region code - Wikipedia

   en.wikipedia.org/wiki/DVD_region_code

   DVD region codes are a digital rights management technique introduced in 1997. [1] It is designed to allow rights holders to control the international distribution of a DVD release, including its content, release date, and price, all according to the appropriate region. This is achieved by way of region-locked DVD players, which will play back ...

3. DVD-Video - Wikipedia

   en.wikipedia.org/wiki/DVD-Video

   A normal DVD player can only play region-coded discs designated for the player's own particular region. However, a code-free or region-free DVD player is capable of playing DVDs from any of the six regions around the world. The CSS license prohibits manufacturing of DVD players that are not set to a single region by default. While the same ...

4. List of Compact Disc and DVD copy protection schemes

   en.wikipedia.org/wiki/List_of_Compact_Disc_and...

   DVD region code. Restricts region where media can be played by matching region number with configuration flag in DVD players. LaserLock. Includes hidden directory on the CD containing corrupted data which will cause errors while being copied. SafeDisc (version 4) See SafeDisc (versions 1-5) in previous section. SecuROM.

5. Regional lockout - Wikipedia

   en.wikipedia.org/wiki/Regional_lockout

   The DVD, Blu-ray Disc, and UMD media formats all support the use of region coding; DVDs use eight region codes (Region 7 is reserved for future use; Region 8 is used for "international venues", such as airplanes and cruise ships), and Blu-ray Discs use three region codes corresponding to different areas of the world.

6. Regional Playback Control - Wikipedia

   en.wikipedia.org/wiki/Regional_Playback_Control

   Regional Playback Control. RPC-1 and RPC-2 are designations applied to firmware for DVD drives. Older DVD drives use RPC-1 firmware, which allows DVDs from any region to play. Newer drives use RPC-2 firmware, which enforces DVD region coding at the hardware level. See DVD region code#Computer DVD drives for further information. Some RPC-2 ...

7. DVD - Wikipedia

   en.wikipedia.org/wiki/DVD

   The DVD (common abbreviation for digital video disc or digital versatile disc) [9] [10] is a digital optical disc data storage format. It was invented and developed in 1995 and first released on November 1, 1996, in Japan. The medium can store any kind of digital data and has been widely used to store video programs (watched using DVD players ...