video formats and compression

Discussion in 'Amateur Video Production' started by nobody, Dec 13, 2007.

  1. nobody

    nobody Guest

    I've got some really large AVI files consisting of uncompressed
    frames.  What is the best common video format to shrink these files
    down to a reasonable size?
     
    nobody, Dec 13, 2007
    #1
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  2. nobody

    Ken Maltby Guest

    It depends on what you plan on doing with them.
    If you are going to be editing or processing them, you
    should just leave them as they are.

    Once you have a reason to compress the video you
    will have a number of format options, to choose from.
    The reason could be to stream from your web page,
    or it could be to go on a DVD, or you may want to
    have small files of good quality video for playback
    from local or networked hard drives. Then people
    make files for playback on their iPods and cellphones.

    The best Encoding/conversion would be from your
    uncompressed source.

    Luck;
    Ken
     
    Ken Maltby, Dec 13, 2007
    #2
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  3. It depends on too many unknowns to give you a real answer.
    * How much video (number of files, size, etc)?
    * What do you anticipate doing with the video in the future?
    * What does "reasonable size" mean to YOU?
    * What are your availble resources (hardware, software, storage)?
     
    Richard Crowley, Dec 13, 2007
    #3
  4. nobody

    nobody Guest



    I would like to offer some video's for download from my website. The
    current AVI's are 4 to 6 minutes long and are over a gig each. I
    need a format that allows 640x480 at a decent resolution with minimum
    file size.

    Any recommendations?
     
    nobody, Dec 13, 2007
    #4
  5. For distribution on a website: compress to Flash (alternate: WMV)
    For convienent access: Keep the original clips on DVDR discs
    For archival storage: Keep the original clips on mini-DV tape (or =)
    OTOH, hard drives cost much less than 1$ per GB. You could just
    leave them where they are.
     
    Richard Crowley, Dec 13, 2007
    #5
  6. nobody

    Mike Kujbida Guest


    For future reference, that's not uncompressed AVI.
    If it was, your file size would be more like 8 gigs each.
    What you have are AVIs from a miniDV camcorder (approx. 13.5 gigs/hr.).
    The recommendation of Flash or WMV is a good one.

    Mike
     
    Mike Kujbida, Dec 14, 2007
    #6
  7. nobody

    Bucky Guest

    are these just amateur home videos you're sharing, or more
    professional videos you're selling? depending on what quality you
    need, 640x480 compresses decently at around 2000-3000kbps. That's
    roughly 20MB/min.
     
    Bucky, Dec 15, 2007
    #7
  8. nobody

    Bucky Guest

    temporally uncompressed. =)
     
    Bucky, Dec 15, 2007
    #8
  9. nobody

    nobody Guest



    The video was from surveillance recordings. Thanks for the info.
     
    nobody, Dec 18, 2007
    #9
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