.MP4 File Extension

MPEG 4 Video File

Video File
MPEG-4 is the method for defining compression for digital audio-visual digital data.

Introduced in 1998 by The Moving Picture Experts Group it is commonly used for sharing video files over the Internet.

MPEG-4 absorbs many of the features of MPEG-1 and MPEG-2 formats, adding some new features such as VRML (Virtual Reality Modeling Language) support for 3D rendering, object-oriented composite files and various types of interactivity. MPEG-4 format uses separate compression methods for the audio and video tracks. Video is compressed with MPEG-4 video encoding, and the audio is using the AAC compression. MP4 is quite popular among the users of iPod, iPhone and PSP.

Ratified as part of the MPEG-4 standard (MPEG-4 Part 10), H.264 delivers stunning quality at remarkably low data rates.





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Comments (6)
showing 1-6
Jim
2007-04-09 18:42:03
#1
If you need to create MP4 files, you can use mp4UI. If you just want to play the MP4 file, you'll need the MP4 codec from http//www.free-codecs.com/
ahmad battal
2008-08-30 02:36:59
#2
how to make videos run on VCD from digital camera that its file extension is (avi) without problems or wrongs.
that means converting from one extension to other with keeping sound and movie as same when recorded.
ajith
2008-09-08 02:26:06
#3
how can we compress the mp4 file of 70mb?
jathin
2008-10-21 00:58:33
#4
what is the difference between .mp3 and .3gp?
JUShua
2008-11-15 11:14:08
#5
how can i make a mpeg-4 file a mp4 file?
Zelalem
2009-02-17 08:36:01
#6
Can I store two different video types in the same file? I mean like one encoded with h264 and another with h263. I want them to be stored in the same file to do some experiment.