What is a MP4 File?

Discussion in 'Windows Desktop Systems' started by Bman, Sep 10, 2006.

  1. Bman

    Bman OSNN Veteran Original

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    This is very simple, just I have never delt with it.

    Is mp4 a video file?
     
  2. j79zlr

    j79zlr Glaanies script monkey Political User

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  3. Bman

    Bman OSNN Veteran Original

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    Re: mp4?

    Thanks man
     
  4. Luna

    Luna OSNN Senior Addict Folding Team

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    Re: mp4?

    .mp4 does not mean it's a video file however.
    You can have just audio in .mp4.

    I convert all my music with foobar2000/AAC with the .mp4 extension.
     
  5. madmatt

    madmatt Bow Down to the King Political User

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    Thread title modified.
     
  6. Bman

    Bman OSNN Veteran Original

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    But most of the time, say if your downloading something an mp4 file is most likely video yes.
     
  7. LeeJend

    LeeJend Moderator

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    Most likely.

    MPEG4 is a standard used heavily for video (like DVD rips) on the web.
     
  8. X-Istence

    X-Istence * Political User

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    m4a is more common place for Audio files.
     
  9. gonaads

    gonaads Beware the G-Man Political User Folding Team

    MP4s are mostly video that can be loaded onto PSP and mobile phones to view. Most mobile phones use the 3gp file format but many can read the mp4 format as is without conversion. My LG VX9800 has 7 episodes of the Simpsons and the "Still Seeing Breen" music video on it in mp4 format.

    Files in .m4a format are actually the audio layer of (non-video) MPEG 4.
     
  10. gonaads

    gonaads Beware the G-Man Political User Folding Team

    Heh, ya beat me to it. (Got stuck watchin some Football highlights, American Football. :p)


    [edit]
    FYI:
    Also there are "protected" m4a files.
    http://wiki.videolan.org/index.php/.m4a



    More info on mp4 file format:

    http://forum.doom9.org/showthread.php?s=&threadid=62723
     
    Last edited: Sep 11, 2006