range of appropriate values for the properties associated with them. Some of the approved MPEG standards were revised by later amendments and/or new editions.

The primary early MPEG compression formats and related standards include:
*MPEG-1 (1993): Coding of moving pictures and associated audio for digital storage media at up to about 1.5 Mbit/s (ISO/IEC 11172). This initial version is known as a lossy fileformat and is the first MPEG compression standard for audio