MP4 is a multimedia container format defined by MPEG-4 Part 14 (ISO/IEC 14496-14). It is based on the Apple QuickTime format, but is not identical to it.

It is a successor to the older MOV format, and is used for video (with H.264 and H.265 codecs) and audio (with AAC and AC-3 codecs).

It is used by iTunes for music and video downloads, and by many other services for video streaming. It is also used for video files on Blu-ray discs.

File types


Also appears as