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

[Dragonis40]

Cyberpunk 2077 v1.52 HF2:

Good evening everybody. I'd like to know if there is any difference between v1.50 and v1.52 HF2 in compression. It seems that v1.50 is more compressible, isn't it?
If you download Fitgirl version from his/her site (v1.50, one language and Bonus content included), the size is about 36.8 GB. After several tests, my size is 37.8 GB (v1.52 HF2, one language and Bonus content included). For sure, Fitgirl uses specific softwares to compress a lot and not only LOLZ, SREP, XTOOL 2020.
Does anyone know if there is something specific to better compress Cyberpunk 2077? Thanks in advance!

[Masquerade]

Originally Posted by Dragonis40

For sure, Fitgirl uses specific softwares to compress a lot and not only LOLZ, SREP, XTOOL 2020.
Does anyone know if there is something specific to better compress Cyberpunk 2077? Thanks in advance!

You've answered your own question. FitGirl's repack is smaller because she uses additional tools outside of the FreeArc process to properly compress the game files.

For example:

- Game uses BINK videos that BPK will produce CRC imperfect files, so you must HDiffPatch them (definitely sure this will work)

So there you go, how to shrink your repack.

[Dragonis40]

Thank you for replying me! Audio_1 and Audio_2 are composed of a lot of .wem files, but I you try to convert .wem files from Audio_1, you'll get worse compression ratio (don't know why). If you convert .wem files from Audio_2, not all them will be converted, however compression ratio is much better!
For bpk files, only some basegame_5 bpk files are compressible with no error, lot of others are not compressible cause of crc error or motion data error (or something like that).
So, how I can use HDiffPatch to fix bpk issues? Thank you!

[Dragonis40]

Originally Posted by Masquerade

You've answered your own question. FitGirl's repack is smaller because she uses additional tools outside of the FreeArc process to properly compress the game files.

For example:

- Game uses BINK videos that BPK will produce CRC imperfect files, so you must HDiffPatch them (definitely sure this will work)

So there you go, how to shrink your repack.

Hello, how can I use HdiffPatch on Cyberpunk 2077 bink files? I've searched into website, but no concrete example, no concrete instruction. Can anyone help me? Thank you!

[Masquerade]

Originally Posted by Dragonis40

Hello, how can I use HdiffPatch on Cyberpunk 2077 bink files? I've searched into website, but no concrete example, no concrete instruction. Can anyone help me? Thank you!

https://www.fileforums.com/showpost....postcount=3101

[Dragonis40]

Originally Posted by Masquerade

https://www.fileforums.com/showpost....postcount=3101

Thank you for your reply! I've used hdiffz.exe and, thank to your instructions, it works! What I don't understand is the pro of all of this. Let me better explain: I use hdiffz.exe to avoid CRC error when I decompress .bik and .bk2 files, but I have no advantages in terms of compression, since I have to use temp file and diff file to create the original .bik and .bk2 file.
I thought that I had to use compressed file (bpk file) to create the original one, but as far as I can see, this file is not used at all.
Is there anything i don't understand?