Genji: Days of the Blade (PS3) BPAK Compression

Extraction and unpacking of game archives and compression, encryption, obfuscation, decoding of unknown files
akderebur
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Joined: Wed Nov 15, 2017 1:54 pm

Genji: Days of the Blade (PS3) BPAK Compression

Post by akderebur »

I was able to extract the main BPAK archive fine which was not compressed. However, inside that are more BPAK archives which are compressed. I don't know the compression used, seems to be some type of LZ. I am hoping if someone can find what it is, or at least tell me if it's a custom variant.

I have attached 2 samples. The compressed data starts with the second "BPAK" magic, around 0x100 or a bit further (depending on the sample). Thanks in advance.