how can i compress files to make it fit into a single cd-r?

Discussion in 'OS X and OS X Apps' started by extreme16199, Feb 19, 2006.

  1. extreme16199

    extreme16199 Member

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    i tried right clicking and using "create archive..." to make a zip file, but the reduction in size is too insignificant. is there any way to adjust compression to reduce size of the zip file even further?

    what other options are available to me?

    thanks in advance for the help!

    cheers.
     
  2. Sabonis

    Sabonis Active Member

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    What files are you trying to "zip"? This additional info can help the gurus assess your predicament.
     
  3. extreme16199

    extreme16199 Member

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    it's actually a video file i'm trying to compress.
     
  4. Sabonis

    Sabonis Active Member

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    Could it be that your video file is already compressed? What is the format of the video?
     
  5. extreme16199

    extreme16199 Member

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  6. lamski

    lamski PhilMUG Addict Member

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    Standard CDRs come in 650 MB and 700 MB sizes. Non standard ones come in larger capacities but may not be supported by all drives. It might help you fit that video if you buy bigger capacity CDRs if your drive supports it.

    By the way, what's the original size of the mpeg you're trying to copy?
     
  7. extreme16199

    extreme16199 Member

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    the size is about 785MB. when i use "create archive...", the size goes down to about 773MB, which still won't fit a 700MB cd-r.
     
  8. dominiquejames

    dominiquejames Active Member

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    Maybe, you can re-encode the video?
     
  9. lamski

    lamski PhilMUG Addict Member

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    You can split the file to smaller chunks then reassemble them using this tip from macosxhints: Use split and cat to make segments and rejoin them

     
  10. wildcard

    wildcard Active Member

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    if all else fails burn the mpeg file as a VCD, a VCD can contain about 45 mins of video no matter what the file size is.
     
  11. Sabonis

    Sabonis Active Member

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    Isn't MPEG compressed na?
    "What is MPEG ?
    MPEG
    which stands for Moving Picture Experts Group, is the name of family of standards used for coding audio-visual information (e.g., movies, video, music) in a digital compressed format. The major advantage of MPEG compared to other video and audio coding formats is that MPEG files are much smaller for the same quality. This is because MPEG uses very sophisticated compression techniques." :D
     
  12. Kenneth

    Kenneth Moderator

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    If you have stuffit deluxe, you can split the file.

    or use Split&Concat instead
     
  13. wildcard

    wildcard Active Member

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    try to reencode the file into mp4
     
  14. extreme16199

    extreme16199 Member

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    unfortunately, the source video isn't with me anymore.
     
  15. extreme16199

    extreme16199 Member

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    how do i do this? also, the video is about 90 minutes long. will this work? TIA.
     
  16. extreme16199

    extreme16199 Member

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    actually, i'm looking more at compressing the file for storage, much like how Winzip works in the Windows world. i remember being able to compress a file to half its size (or even smaller) with Winzip, but haven't found a comparable program to do this task in the Mac world.

    it would've been much easier for me if i had a DVD burner or an external drive, but unfortunately, i have neither.
     
  17. Sabonis

    Sabonis Active Member

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    We have stuffit naman for MACs eh. But even in the windoze world, if you are compressing an already compressed file, it would make almost no difference in size (if not only making it larger).
     
  18. extreme16199

    extreme16199 Member

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    i see. thanks for the clarification! maybe that's the reason why the "create archive..." function doesn't reduce the size any further.

    cheers.
     
  19. PatrickGaerlan

    PatrickGaerlan Super Moderator
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    The "Create Archive" action in Finder works exactly like Winzip as far as compression is concerned. It's just that MPEG files are already highly compressed, just like JPEG files, so compressing them further by zipping them won't help much. The amount of compression depends on the kind of file that you're trying to compress. Text files compress very well, but most modern media files (like mpg, jpg, mp3) compress poorly because they're already highly compressed to begin with. Even Winzip will not be able to compress the MPEG file much.

    EDIT: Oops, inulit ko lang pala sinabi ni Sabonis ;)
     
    #19 PatrickGaerlan, Feb 20, 2006
    Last edited: Feb 20, 2006
  20. wildcard

    wildcard Active Member

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    Hi guys, I want to compress a 6gig file, do you guys know any app that makes compressed segmented files? so that I can burn it into 2 DVDs
     

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