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Video codecs are used in DVD and video CD players and recorders, video broadcast systems, personal computers, and a variety of other applications. In particular, they are widely used in applications that record or transmit video, which may not be feasible with the high data volumes and bandwidths of uncompressed video.
DVD regions. DVD (commonly digital video disc) region codes are a digital rights management technique designed to allow film distributors and television companies to control aspects of a release, including content, release date, and price, according to the region.