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Webopedia Staff
Last Updated May 24, 2021 7:49 am
A comprehensive standard framework for networked digital multimedia designed by the Moving Picture Experts Group. MPEG-21 includes an REL and a Rights Data Dictionary. Unlike other MPEG standards that describe compression coding methods, MPEG-21 describes a standard that defines the description of content and also processes for accessing, searching, storing and protecting the copyrights of content.