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However, region-free DVD players, which ignore region coding, are also commercially available, [2] and many DVD players can be modified to be region-free, allowing playback of all discs. [3] DVDs may use one code, multiple codes (multi-region), or all codes (region free).
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. Most Blu-rays, however, are ...
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 drives can be converted to RPC-1 with the same features as before by using alternative firmware on the drive, or on some drives by setting a secret flag in the drive's EEPROM .
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Generally, no - they have both a Blu-ray region and a DVD region. For example, a UK PS3 will only play region 2/region free DVDs and region B/region free/all region Blu-rays. Of course, like with standard DVD players there are region-free players available (although I don't know how prevalent they are).
The case was dropped in January 2004. CSS decrypting software (such as DVD Decrypter, AnyDVD, and DVD Shrink) allows a region-specific DVD to be copied as an all-region DVD. It also removes Macrovision, CSS, region codes, and user operation prohibitions. They also filed the suit DVD CCA v.
libdvdcss (or libdvdcss2 in some repositories) is a free and open-source software library for accessing and unscrambling DVDs encrypted with the Content Scramble System (CSS). libdvdcss is part of the VideoLAN project and is used by VLC media player and other DVD player software packages, such as Ogle, xine-based players, and MPlayer.
Unlike DVD region codes, Blu-ray region codes are verified only by the player software, not by the optical drive's firmware. As of 2017 the latest types of Blu-ray players, suitable for Ultra HD Blu-ray content, are not region-free, but Ultra HD Blu-ray disc manufacturers have not yet locked the discs to any region and they work worldwide.