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<html><head><meta content="text/html; charset=ISO-8859-1" http-equiv="content-type"><title>MP4</title></head>
<body><h1><a name="MP4"></a>MP4</h1>MP4
is an audio and video file compression format that is used for sharing
of files over the Internet. The MP4 format uses separate compression
for video &amp; audio tracks. While the video is compressed with MPEG-4
video encoding, audio is compressed with <a href="AAC.html">AAC</a> compression in the MP4
format. Most of the video programs and hardware devices support MP4
files.<br><br>See Also<br><br style="font-weight: bold;"><a href="http://en.wikipedia.org/wiki/MPEG-4_Part_14">MPEG-4 Part 14</a></body></html>