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    wessley's Avatar
    wessley Posts: 5, Reputation: 1
    New Member

    Nov 17, 2005, 07:37 AM
    Differnce between mp3 & mp4
    I would like to know the difference between mp3 and mp4 ? Any useful notes about these format ?
    Curlyben's Avatar
    Curlyben Posts: 18,514, Reputation: 1860

    Nov 17, 2005, 07:53 AM
    MP3 is for sound files (see here: )


    MP4 is for video and sound (see here: )

    Hope this helps
    fredg's Avatar
    fredg Posts: 4,926, Reputation: 674
    Ultra Member

    Nov 17, 2005, 07:55 AM
    This link:

    Has a very good explanation, and short history, of both MP3 and MP4.
    The MP4 is only used through itunes and ipods, but the MP3 is a "standard" for most players and converters.
    NeedKarma's Avatar
    NeedKarma Posts: 10,635, Reputation: 1706
    Uber Member

    Nov 17, 2005, 09:51 AM
    Fred was a little off when he said "MP4 is only used through itunes and ipods". That's the audio-only part of mp4 also known as AAC in the iTunes world. Mp4s are also related to video content as well:

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