If it's properly encrypted with something like AES256 then no, comparison of the plaind and encrypted file will yield no useful information. The encrypted data is essentially like random noise without a decryption key. However if it is a weaker or rather simple encryption then a "known-plaintex...

Thanks for the reply. This is the script from the QuickBMS site: # QuickCompression QCMP PMCQ quickbmsver "0.8.5" get NAME basename get EXT extension string NAME + "_unpack." string NAME + EXT endian big idstring "QCMP" get type short # 1 get version short # 1 get dataO...

I'm trying to decompress the track files from ModNation Racers (PS3 kart game). When I open the .TRK files in a hex-editor I see the following hex: 51 43 4D 50 00 01 00 01 00 00 00 40 00 00 00 38 ... Where the first four would decode to QCMP There is an old thread about Sleeping Dogs (on this forum)...