Best Compression Methods for 'Specific' Games. Q&A

[KaktoR]

Originally Posted by Masquerade

The Amazing Spider Man 2 (2014) has a file called Streams2.dat, it's the largest file in the entire game (2,323,030,372 bytes / 2.16GB) and I don't know how to compress it efficiently.

I threw it into RAZOR12911's scanner and this was the result:



There's zlib streams so I decided to use XTool Zlib, but that didn't do anything:

Compressing 2 files, 2,323,030,372 bytes
  Compressing Data\
  Compressing Data\Streams2.dat
Compressed 2 files, 2,323,030,372 => 2,323,031,492 bytes. Ratio 100.00%
Compression time: cpu 2.23 sec/real 72.99 sec = 3%. Speed 31.83 mB/s
All OK

ZTool zlib was the same:

Compressing 2 files, 2,323,030,372 bytes
  Compressing Data\
  Compressing Data\Streams2.dat
Compressed 2 files, 2,323,030,372 => 2,323,035,496 bytes. Ratio 100.00%
Compression time: cpu 2.09 sec/real 50.60 sec = 4%. Speed 45.91 mB/s
All OK

PZLib also had a simlar result at a 100% ratio.

Is there something I'm missing here? There's also lots of WAV streams detected, but I don't know how to focus on them. I tried MSC, but that only found WAV streams of an unknown file type, and did nothing.

I don't think the file could be encrypted because the streams were detected.

If anyone has any tips, they'd be greatly appreciated.

What version of GFS is this? Because mine looks different.