Over the past few years there have been several popular formats for audio information, including
WAV, AU, AIFF, VQF, and MP3.
Currently, the dominant format for compressing audio data is MP3.
MP3 is short for MPEG-2, audio layer 3 file.
MPEG is an acronym for the Motion Picture Experts
Group, which is an international committee that develops standards for digital audio and video compression.