MPEG-4Part14, or MP4, is a digital multimedia container format most commonly used to store video and audio, but it can also be used to store other data
MPEG-2 (as Part 1) before MPEG-4 was issued. MPEG-4 is still an evolving standard and is divided into a number of parts. Companies promoting MPEG-4 compatibility
MPEG-4Part 3 or MPEG-4 Audio (formally ISO/IEC 14496-3) is the third part of the ISO/IEC MPEG-4 international standard developed by Moving Picture Experts