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Thread: Trying to figure out an unknown compression method

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    Addicted Member Frankie902's Avatar
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    Trying to figure out an unknown compression method

    I am working on a program that opens files from the 1995 game "Microsoft 3D Movie Maker" for importing and exporting of indexed sections.

    The biggest problem I have ran into is the compression that is used by 3dmm for MOST of the image sections called MBMPs. In the american version of the game in the STUDIO file there is are compressed MBMPs. And in the japanese version's STUDIO file there are all uncompressed MBMPs. I was able to extract these 2 exact (I think) identical images from the files. I am trying to figure out how the compression works, and its a pain.

    I look in the compressed.mbmp and the uncompressed.mbmp and I see a few sections in the compressed one similar to the uncompressed one.

    A description of the files:
    bar.bmp - The image these 2 files create
    Compressed.mbmp - The compressed version of the image
    Uncompressed.mbmp - The uncompressed version of the image.

    If anyone can help me or lead me to someone who can help me it would be great. Thanks.
    Attached Files Attached Files
    Using:
    Visual Studio .Net Enterprise
    Visual Basic 6.0 Enterprise

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