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Thread: Help with unknown compression. Maybe LZMA?

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    Help with unknown compression. Maybe LZMA?


    I'm currently making a file extractor for a game archive which has both uncompressed files and compressed ones and I'm having trouble working out the exact type of compression. The header appears to match a LZMA header but every LZMA decompression tool throws an error.
    If anyone could take a look and share your findings it would be very much appreciated!


    Here are some of the compressed files in a rar archive:

    Edit: Never mind worked it out, it was indeed LZMA but the output size had been removed from the header as it was stored in the archive TOC.
    Last edited by twisted89; 29th November 2012 at 13:26.

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