Project CARS 2/3 Bff Decryption Tool

[Razor12911]

that's interesting is it not? so is the issue bdt or?

[doofoo24]

i did not tested on the whole game just on 3gb of bff
and did test bdt+oo2reck without srep+lolz.
it did decompress without error
edit : tested bdt alone on all bff files decompress without error...

[Razor12911]

Originally Posted by doofoo24

i did not tested on the whole game just on 3gb of bff
and did test bdt+oo2reck without srep+lolz.
it did decompress without error
edit : tested bdt alone on all bff files decompress without error...

Could you also try finding the bff that raises this issue if possible because I already uninstalled the game due it being boring af

[doofoo24]

need to test bdt+oo2reck without srep+lolz on different folders...

[doofoo24]

interesting oo2reck cpu usage most of the time stay at 11%...

[Razor12911]

it has single threaded scanning and multi threaded processing, it's not like xtool where everything is multi threaded (scanning and processing), scanning takes time because it has to find out the decompressed size of specific streams and it has to decompress it several times until the size comes out.

edit: furthermore, the game has large streams with no uniform sizes which result in the process taking longer than it should

[doofoo24]

edit : ok decompress without error...

[Razor12911]

I just ran a test and the same tool works for Project Cars 3

You need to use oo2core_8_win64.dll from the game, rename it to oo2core_7_win64.dll so it can be used by oo2reck

Pakfiles\HRDFPERSISTENT.bff

-moo2reck:

Tested 1 file, 105,349,913 => 105,349,877 bytes. Ratio 100.00%
Testing time: cpu 0.09 sec/real 0.13 sec = 71%. Speed 792.55 mB/s

-mbdt+oo2reck:

Tested 1 file, 351,678,627 => 105,349,877 bytes. Ratio 333.82%
Testing time: cpu 0.13 sec/real 6.46 sec = 2%. Speed 16.30 mB/s

@moderator
please update title and thanks

[L0v3craft]

Originally Posted by Razor12911

I just ran a test and the same tool works for Project Cars 3

Try it on "VEHICLEUPGRADES.bff" and test the decompression.

[dixen]

Little test P.C3

bdt+oo2reck

Compressed 17 files, 287,031,418 => 1,801,889,432 bytes. Ratio 627.77%
Compression time: cpu 0.33 sec/real 129.51 sec = 0%. Speed 2.22 mB/s
All OK

Unpack

Extracted 17 files, 1,801,889,432 => 287,031,418 bytes. Ratio 627.77%
Extraction time: cpu 0.69 sec/real 12.04 sec = 6%. Speed 23.85 mB/s
All OK

[Grumpy]

Originally Posted by Razor12911

@moderator
please update title and thanks

Done and you're welcome

[Razor12911]

Originally Posted by L0v3craft

Try it on "VEHICLEUPGRADES.bff" and test the decompression.

I already uninstalled game as it ran away from the racing simulation roots while maintaining the same name. Very disappointing...

Edit:

I did something like what this person did (comments from IGN's review of the game on YouTube)

[hwang4]

After testing on all "bff" files , only these two files caused problem with "bdt"

- VEHICLEUPGRADES.bff
- Shanghai[Group].bff

hope this will help!

[dixen]

Razor12911
What about PC1 (2015)? BFF don't decompress with bdt or oo2reck(( But unpack with QuickBMS and reimport very slow
Sample here

[Hexagon123]

Does this work with Fast & Furious Crossroads (2020) PC game, some files are encrypted?