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

[wrathma]

Originally Posted by KaktoR

This is audiokinetic wwise format (ogg vorbis), not pcm.

Use wemtool on them.

PS: Skip all wem file below 100kb, otherwise you will get negative ratio.

2.88mb -> 2.64mb

Edit: I extracted all audio files from the pak file and processed them with wemtool.
Result: 8.14GB -> 7.61GB

also i can see some of the files (20mb+) contains multiple bik headers. are those actual bik files and if yes are they compressable ?

[Masquerade]

^^
Check first if you can play them with bink player. Or check with Mesa.
Secondly, if they are KB2n, they are not supported by bpk.

[KaktoR]

Mewgenics
you have to extract ogg otherwise you will get crc errors on installaion that's why input size is bigger than original size (4.57GB vs 6.32GB) but output will get smaller this way (3.07GB vs 2.77GB).

 17:59:55 - Selected ARC/DS method for Data1a-01.bin was: msc_tak:mp3=0:ddsraw=0:wav=1:raw=1:bmf=9:TAK=9:bmp=1:lzma,bt4,fb128,lc8+xtool:c128mb:mzlib:reflate:dd3+4x4:b64mb:lzma:ultra:64m:bt4:fb273:lc8:mc1000000
 17:59:55 - Selected ARC/DS method for Data1b-01.bin was: oggre
-----------------------------------------------------------------------------------------------------------------------------------------
 18:19:11 - Overall input size: 6,32 GB
 18:19:11 - Overall output size: 2,77 GB (Ratio 43.84%)
 18:19:11 - Overall conversion time: 00:19:14

[wrathma]

Originally Posted by Masquerade

^^
Check first if you can play them with bink player. Or check with Mesa.
Secondly, if they are KB2n, they are not supported by bpk.

they are not playable through rad video tools and bpk doesnt compress them.

[KaktoR]

Send sample

[wrathma]

Originally Posted by KaktoR

Send sample

cant upload the file here. uploaded it here https://gofile.io/d/HRSRjZ
i might be wrong but opening this in a hex viewer shows that it has multiple "bpk" headers.
also can you help me with compressing the .ucas file (33gb). i know i have to use xtool with ue5 method but i get 0 streams detected there. i couldnt find any aes keys in it and i tried to open the ucas in fmodel and it didnt ask for any aes keys so i think its not encrypted.

[KaktoR]

That's are just some random data. None of them are valid.

What game?

[wrathma]

Originally Posted by KaktoR

What game?

silent hill f

[KaktoR]

Send sample (cut 100-200mb of the ucas files). Also send exe and utoc of it.

[wrathma]

Originally Posted by KaktoR

Send sample (cut 100-200mb of the ucas files). Also send exe and utoc of it.

https://gofile.io/d/2afICi
original SHf-Windows.ucas was 31.4 gb. i cut the first 200 mb. and everything else is unchanged.

[KaktoR]

Just use mermaid+kraken

Streams: 3239 / 3240
Time: 00:00:27 (CPU 00:02:21)

Size: 200 MB >> 630 MB

[wrathma]

Originally Posted by KaktoR

Just use mermaid+kraken

Streams: 3239 / 3240
Time: 00:00:27 (CPU 00:02:21)

Size: 200 MB >> 630 MB

this might be stupid but i still cannot get it to work.

 > xtool.exe precomp -mkraken+mermaid -c32mb -t100p-1 - - < SHf-Windows.ucas > SHf-Windows.ucas.out
XTool is created by Razor12911

Version 0.8.7

Streams: 0 / 0
Time: 00:00:00 (CPU 00:00:00)

Size: 200 MB >> 200 MB

[KaktoR]

Did you used any library?

[wrathma]

Originally Posted by KaktoR

Did you used any library?

no that was the exact command i ran.
can you give me your command ?
edit: dsg also gives same output

--------------------------------------------------------------------------
----------------------- CONVERSION DATE 2026/02/16 -----------------------
--------------------------------------------------------------------------
 20:49:01 - Deleting files from the output folder.
 20:49:01 - Files have been deleted.
--------------------------------------------------------------------------
 20:49:01 - You have chosen the DVD5 type for the media size.
 20:49:01 - ISO images will not be created when conversion is complete.
 20:49:01 - The computer will remain on when the conversion is complete.
 20:49:01 - Selected ARC/DS method for Data1a-01.bin was: xtool:mkraken:mmermaid:3
--------------------------------------------------------------------------
 20:49:01 - Compression initialized in 16/02/2026 at 20:49:01.
 20:49:01 - Starting Data1a-01.bin archive creation.
 20:49:11 - Moving Data1a-01.bin file to media folder.
 20:49:11 - Compression finished in 16/02/2026 at 20:49:11.
--------------------------------------------------------------------------
 20:49:11 - Getting size of the game: Unknown 1
 20:49:11 - » Installation folder size: 213.45 MB
 20:49:11 - » Compressed game size: 213.45 MB (Ratio 100.00%)
--------------------------------------------------------------------------
 20:49:11 - Overall input size: 213.45 MB
 20:49:11 - Overall output size: 213.45 MB (Ratio 100.00%)
 20:49:11 - Overall conversion time: 00:00:09
 20:49:11 - Overall conversion discs: 1 DVD5
--------------------------------------------------------------------------

[KaktoR]

Bro you have to use the correct oodle library!

Try v2.9.10 (2).

xtool:mkraken:mmermaid:core_2.9.10:lib_2