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The eight regions each correspond to a value which is a power of 2: Region 1 corresponds to 1 (2 0), Region 2 to 2 (2 1), Region 3 to 4 (2 2), and so on through Region 8, which corresponds to 128 (2 7). The values of each region that the disc is not encoded for are added together to give the value in the file. For example, a disc that is ...
Out of the 676 possible pairs of regional indicator symbols (26 × 26), only 270 are considered valid Unicode region codes. These are a subset of the region sequences in the Common Locale Data Repository (CLDR): [6] [7] [8] All 256 regular region sequences in the CLDR 249 officially assigned ISO 3166-1 alpha-2 codes
Regional lockouts in video games have been achieved by several methods, such as hardware/software authentication, slot pin-out change, differences in cartridge cases, IP blocking and online software patching. Most console video games have region encoding. The main regions are: Japan and Asia ; Americas (NTSC-U)
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
Region 1, a DVD region code; Region 1, Northwest Territories, a Statistics Canada census division; Northeastern United States, Region 1 for the US Census Bureau; Region 1, one of the health regions of Canada managed by Horizon Health Network; Former Region 1 (Johannesburg), an administrative district in the city of Johannesburg, South Africa ...
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 ...
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NTSC color encoding is used with the System M television signal, which consists of 30 ⁄ 1.001 (approximately 29.97) interlaced frames of video per second. Each frame is composed of two fields, each consisting of 262.5 scan lines, for a total of 525 scan lines. The visible raster is made up of 486 scan lines.