This page contains information on the MP4 file extension (MPEG-4 Part 14), a popular video file format

MP4 MP4 (Video)

File extension .mp4
Category Video File
Description MP4 files (MPEG-4 Part 14) are multimedia files. MP4 is a container format that can store video, audio and subtitle data (as well as more depending on content). Since stores like iTunes uses this container format, and it is used with iPod and PlayStation Portable (PSP), MP4 files have become more common.
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Technical Details MPEG-4 Part 14 or MP4, formally ISO/IEC 14496-14:2003, is a multimedia container format standard specified as a part of MPEG-4. It is most commonly used to store digital video and digital audio streams, especially those defined by MPEG, but can also be used to store other data such as subtitles and still images. Like most modern container formats, MPEG-4 Part 14 allows streaming over the Internet. A separate hint track is used to include streaming information in the file. The only official filename extension for MPEG-4 Part 14 files is .mp4.
Associated programs
  • Apple QuickTime Player
  • Apple iTunes
  • Microsoft Windows Media Player
  • VideoLAN VLC Media Player
Developed by Moving Picture Experts Group
MIME type
  • audio/mpeg
Useful links

MP4 Convert MP4 file

Using Zamzar, it is possible to convert MP4 files to a variety of other formats

MP4 Converter Video