@L33THAK0R
I was able to pack the bink videos. There are 3, one of them is BK2, the others BIK.
Code:
FreeArc 0.67 (March 15 2014) creating archive: Conversion_Output\Data1a-01.bin
Compressed 3 files, 1,580,482,272 => 1,292,223,837 bytes. Ratio 81.76%
Compression time: cpu 1.08 sec/real 154.58 sec = 1%. Speed 10.22 mB/s
All OK
As for the WEM files. I tested a bit with the language files and you will gain just a small amount of ratio even if you group+squash the files into one single file.
g00s001 WEM files 733MB -> 672MB
Just make sure to exclude WEM files which are less than 100kb in size if you process them. There is always a magic line for the WEM files for which - if they less than size X - processing them will yield in zero ratio or sometimes even in negative ratio.