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What does MPEG4 stand for?

MPEG4 is pretty much a collection of standards defined by the MPEG Group. It is a patented collection of methods defining compression of audio and visual (AV) digital data.

MPEG-4 absorbs many of the features of MPEG-1 and MPEG-2 and other related standards, adding new features such as (extended) VRML support for 3D rendering, object-oriented composite files (including audio, video and VRML objects), support for externally-specified Digital Rights Management and various types of interactivity. AAC (Advanced Audio Coding) was standardized as an adjunct to MPEG-2 (as Part 7) before MPEG-4 was issued.

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