NHL 20 compressed file

Extraction and unpacking of game archives and compression, encryption, obfuscation, decoding of unknown files
DPyro
Posts: 15
Joined: Mon Nov 19, 2018 6:09 pm

NHL 20 compressed file

Post by DPyro »

This is technically a save file but I am wondering if anyone here can help decompress it. I have the uncompressed version from the .BIG file but need to know how the custom roster save files compress. I have included the raw .db file for comparison.

http://www.mediafire.com/file/n1isg27vi ... s.zip/file
Ekey
Posts: 1383
Joined: Sat Aug 09, 2014 2:34 pm

Re: NHL 20 compressed file

Post by Ekey »

DATA file from profiles seems compressed by LZ series (4 probably). DB is not compressed, binary file.
DPyro
Posts: 15
Joined: Mon Nov 19, 2018 6:09 pm

Re: NHL 20 compressed file

Post by DPyro »

Ekey wrote:DATA file from profiles seems compressed by LZ series (4 probably). DB is not compressed, binary file.

Can you explain why it is different than nhl_game.db which is the raw database file? I'm able to open .db file in an editor but not the DATA from save game folder.

EDIT: According to the post here it starts with 0x78 which is possibly zlib.

Image
Last edited by DPyro on Tue Aug 18, 2020 1:07 am, edited 2 times in total.
Ekey
Posts: 1383
Joined: Sat Aug 09, 2014 2:34 pm

Re: NHL 20 compressed file

Post by Ekey »

Just compare data :)

Data from DB
Image

And this mess in DATA file
Image
DPyro
Posts: 15
Joined: Mon Nov 19, 2018 6:09 pm

Re: NHL 20 compressed file

Post by DPyro »

The other thing I'm trying to figure out is what this CRCValue is.
Ekey
Posts: 1383
Joined: Sat Aug 09, 2014 2:34 pm

Re: NHL 20 compressed file

Post by Ekey »

In DATA file?
DPyro
Posts: 15
Joined: Mon Nov 19, 2018 6:09 pm

Re: NHL 20 compressed file

Post by DPyro »

Ekey wrote:In DATA file?

Ya, I don't know a CRC that's 54 bytes in length
Ekey
Posts: 1383
Joined: Sat Aug 09, 2014 2:34 pm

Re: NHL 20 compressed file

Post by Ekey »

This is compressed data, not crc :)