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Thread: Stand alone pcm dat preprocessor/filter

  1. #1
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    Stand alone pcm dat preprocessor/filter

    as i have told before... I'm about to move all my games from physical cd/dvd to images to free up some wall space

    many of the older games contains audio tracks, this is an area where 7.zip lacks good compression filter so i have to use winrar for optimal compression.

    Now for my question,
    is there a stand alone preprocessor/filter that i could use before using 7-zp so that i could utilize 7-zip better lzma compression.

    A stand alone filter that works like ECM and REP does (including simple command interface)


    i remember sometimes on the 7.zp forum someone made a experimental filter. for wav files. But i'm in search for a filter that works on entire CD images which contains both data and audio tracks
    Last edited by SvenBent; 6th May 2008 at 23:47.

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    http://www.haskell.org/bz/
    DELTA compression preprocessor (C++ application/library)
    http://www.haskell.org/bz/delta10.zip

  3. #3
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    Allready using del,rep and ecm as preprocessors/filters

    but using Delta only gave a slight compression improvement only around 8mb was shaved of the final rzm. file (maybe Rzm just works good on pcm data in the first place)

    anyway delta + rzm beats winrar, with about 36mb (839mb -> 803mb) on my quake2 collection

  4. #4
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    Black_Fox's Avatar
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    Bulat has also written MM, but I'm not sure if it can be applied to all data (and not only PCM).
    I am... Black_Fox... my discontinued benchmark
    "No one involved in computers would ever say that a certain amount of memory is enough for all time? I keep bumping into that silly quotation attributed to me that says 640K of memory is enough. There's never a citation; the quotation just floats like a rumor, repeated again and again." -- Bill Gates

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    Programmer Bulat Ziganshin's Avatar
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    have you tried TTA from MM package?
    Last edited by Bulat Ziganshin; 15th May 2008 at 12:11.

  6. #6
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    I Haven't triede TTA yes I'm about to move all my data from my main machine to my server as i need to upgrade my main machine, and therefor clean up the raid array.

    but i will try it out in a couple of days

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