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2. DVD region code - Wikipedia

   en.wikipedia.org/wiki/DVD_region_code

   Egypt, Eswatini, Lesotho, and South Africa are in DVD region 2, while all other African countries are in region 5, but all African countries are in the same Blu-ray region code (region B). North Korea and South Korea have different DVD region codes (North Korea: region 5, South Korea: region 3), but use the same Blu-ray region code (region A).

3. Regional lockout - Wikipedia

   en.wikipedia.org/wiki/Regional_lockout

   Ultra HD Blu-ray discs are also region-free. [2] On computers, the DVD region can usually be changed five times. Windows uses three region counters: its own one, the one of the DVD drive, and the one of the player software (occasionally, the player software has no region counter of its own, but uses that of Windows).

4. AnyDVD - Wikipedia

   en.wikipedia.org/wiki/AnyDVD

   With an upgrade, it will also do the same for HD DVD and Blu-ray Disc. The AnyDVD program runs in the background, making discs unrestricted and region-free. In addition to removing digital restrictions, AnyDVD will also defeat Macrovision analog copy prevention. Analog prevention distorts the video signal to prevent high quality copying from ...

5. Regional Playback Control - Wikipedia

   en.wikipedia.org/wiki/Regional_Playback_Control

   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 .

6. Comparison of high-definition optical disc formats - Wikipedia

   en.wikipedia.org/wiki/Comparison_of_high...

   ^ f As of July 2008, about 66.7% of Blu-ray discs are region free and 33.3% use region codes. [ 6 ] ^ g DVD supports any valid MPEG-2 refresh rate as long as it is packaged with metadata converting it to 576i50 or 480i60, This metadata takes the form of REPEAT_FIRST_FIELD instructions embedded in the MPEG-2 stream itself, and is a part of the ...

7. Blu-ray - Wikipedia

   en.wikipedia.org/wiki/Blu-Ray

   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.