Mpeg-21 meaning

See MPEG.
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The ISO/IEC international standard officially is known as the Multimedia Framework, is an ongoing effort to determine how various multimedia components fit together and to identify new multimedia infrastructure standards that may be required. MPEC-21 also deals with issues of content identification, description, and security. In large part, the focus of MPEG-21 is on the protection of intellectual property through security mechanisms designed to prevent unauthorized access and modification of multimedia content. See also intellectual property, MPEG, and multimedia.
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