c_haese
Group: Members
Posts: 83
Joined: Nov. 2003 |
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Posted: May 28 2005, 23:00 |
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mp4 is the commonly used filename ending for MPEG-4 files. It is a multimedia (i.e. audio-video-and-the-kitchen-sink) file format. See http://www.apple.com/mpeg4/ for more information.
The audio component in an MPEG-4 file is most likely compressed with AAC, which is a codec that achieves better compression than MP3. Then again, many codecs nowadays are better than MP3, including WMA and Ogg Vorbis.
Hope this helps,
Carsten.
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