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MPEG (an acronym for the Moving Picture Experts Group) is a group that first met in 1988 for the purpose of developing standards for audio and video compression (the "MPEG" standard).

MPEG is a compression scheme for full-motion video images. It uses JPEG for the compression of individual frames and also uses other lossy techniques to compress data between frames. MPEG is inherently lossy and the high compression ratio of JPEG is only possible with the lossy compression.

MPEG has standardized:

MPEG files frequently have an .mpg file extension.