Sonic Riders compressed files (PC)

Extraction and unpacking of game archives and compression, encryption, obfuscation, decoding of unknown files
TGE
Posts: 38
Joined: Sat Dec 20, 2014 5:14 pm

Sonic Riders compressed files (PC)

Post by TGE »

I couldn't figure it out using QuickBMS' compression type test myself so I'm hoping someone can find it.
http://puu.sh/dUtvR.7z
aluigi
Site Admin
Posts: 12984
Joined: Wed Jul 30, 2014 9:32 pm

Re: Sonic Riders compressed files (PC)

Post by aluigi »

I tried to use the scanner with the data starting from offset 0x80 and using the 32bit field at offset 4 as uncompressed size.
I don't know what type of data we should expect so I don't know what to search inside the results.
I checked the results matching that uncompressed size and noticed nothing useful.
Argg
Posts: 6
Joined: Sat Mar 28, 2020 6:00 pm

Re: Sonic Riders compressed files (PC)

Post by Argg »

Sorry to bump a dead thread but in the PC version of riders PZ40 looks very much like an uncompressed version of PZ03 and the game loads PZ40 over PZ03 and plays fine.
https://cdn.discordapp.com/attachments/ ... models.zip
The compressed files have a magic and most of them have at 0x80 something like either (this one for the majority)
01 00 20 20 40 20 0C 14 0E 0C 05 0A 03 04 80 04
or
00 08 20 20 (other bytes depend)
The uncompressed files are 3d models with textures packed. I hope this helps!