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coflamsta, posted Sun May 20, 2018 8:38 pm (35118)

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So, I was looking into the files of Hitman Sniper Challenge on the Xbox 360 when i noticed that inside the base or main file there is content which is in an unknown format and its just titled file. I will provide examples to show everyone. Can anyone help decipher this/ understand it? Would be appreciated.


f99233e5b181fbc70bc37902ea64cff4
https://www68.zippyshare.com/v/YbLpD7qM/file.html
3e7ce7cef05fcbf54bea8adbe4dabc48
https://www68.zippyshare.com/v/96ZQ8P7q/file.html
195545b8221cb972ba39a12acdbb50b5
https://www68.zippyshare.com/v/MoaX56lg/file.html
5018f1cc6015f4ca0124daa92cf3c007
https://www68.zippyshare.com/v/3vYEP8Jj/file.html
90739aaaeb287ee85a97b0985ff516d3
https://www68.zippyshare.com/v/xyjPNVLq/file.html
7e29504061b812d0611c6b95f47566ff
https://www68.zippyshare.com/v/REFzvneQ/file.html

aluigi, posted Sun May 20, 2018 8:54 pm (35119)

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The magic bytes (those at the beginning of the files) are 0x0f 0xf5 0x12 0xed which correspond to the "XCOMPRESS_FILE_IDENTIFIER_LZXTDECODE" format.
Basically the Xbox (all of them?) use two native compressed formats that are supported by the xbdecompress tool of xsdk.

Luckily there is a script that works with all these compressed formats:
http://aluigi.org/bms/xcompress_file.bms

Once the file is decompressed you can access its content.
For example f99233e5b181fbc70bc37902ea64cff4 is a "VIDE" file, it looks just like a simple container for a BIK video (radgametools) so you can play it after deleting the first 24 bytes.