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

this will give you a unencrypted fsb file. you have to extract it to get ogg.
after extraction merge all the ogg files at into a big blob. and
compress it using freearc oggre. but the problem is on building
the original file, as they are encrypted. maybe take a look into the source
code of fsbext.

edit:
making building the original data is fairly easy i just misunderstood it.
after extracting the ogg files, pack them using bincat and make a diffpatch
from ogg blob to the decrypted fsb file. and during installation build the
decrypted ogg file and use the same command above to encrypt it again.
it will produce same file.

abidnnt

26-05-2026 01:57

I'm trying to compress Lego Batman Legacy of the Dark Knight, but I'm getting an "out of memory" error in Diskspan GUI.

Tried these methods (*.utoc, *.cas):

Quote:

xtool:t100p:c32mb:d1:mue5,k0x70390692DBC072E5C6D97 DB6D54F6977BFC8B0B273C6C1E004CEEB30BD47822C:mkrake n:core_2.9.11+srep_new:393+lolz:mtt1:mt12

xtool:t100p:c32mb:d1:mue5,k0x70390692DBC072E5C6D97 DB6D54F6977BFC8B0B273C6C1E004CEEB30BD47822C:mkrake n:core_2.9.11+srep_new:392+lolz:mtt1:mt12

xtool:t100p:c16mb:d1:mue5,k0x70390692DBC072E5C6D97 DB6D54F6977BFC8B0B273C6C1E004CEEB30BD47822C:mkrake n:core_2.9.11+srep_new:393+lolz:mtt1:mt12

KaktoR

26-05-2026 02:10

try use -lm option for xtool

abidnnt

26-05-2026 02:13

Quote:

Originally Posted by KaktoR (Post 510175)

try use -lm option for xtool

Should I set it to 0? I have 32 GB of ram and 12 threads.

KaktoR

26-05-2026 02:28

If the error happens on precompression use it like this

Code:

xtool:lm:t100p:c32mb:d1:mue5,k0x70390692DBC072E5C6D97 DB6D54F6977BFC8B0B273C6C1E004CEEB30BD47822C

If the error happens on srep/lolz use other options for those, like lower cpu thread usage and/or chunk size.

abidnnt

26-05-2026 03:56

Windrose

For *.utoc, *.ucas and *.pak:

Code:

xtool:c32mb:mue5:mmermaid:core_2.9.0+srep_new:393a+lolz

For rest of the files:

Code:

srep_new:393a+lolz

It has no encryption so no key is needed.

KaktoR

27-05-2026 09:19

Total War Warhammer 3
This is using sort of zstd (maybe zstdsharp).
You can use zstd with level 22 but you won't be able to get all streams. Use the latest zstd library.

Code:

Streams: 96220 / 207465 (61,23%)

Patched: 96220 (126 MB)

Time: 01:23:09 (CPU 07:24:30)



Size: 84,4 GB >> 90,5 GB





-s option

Streams: 207465 / 207465 (61,23%)

Patched: 0 (0,00 MB)

Time: 00:08:41 (CPU 00:04:38)



Size: 84,4 GB >> 131 GB

KaktoR

27-05-2026 09:24

007 First Light
Is using lz4hc so plugin required.
Idk if encryption is used like in Hitman WoA.

abidnnt

27-05-2026 13:40

Quote:

Originally Posted by KaktoR (Post 510189)

007 First Light
Is using lz4hc so plugin required.
Idk if encryption is used like in Hitman WoA.

Do you know how I can decrypt the key? I think it's encrypted.

Spinneret94

28-05-2026 04:29

Hi friends,
Does anyone know how to compress dead cells?
It uses .pak files though the game is not made on unreal engine.
I tried using these two methods but no luck:
xtool:mzstd+srep_new:392+LOLZ_ULTRA
xtool:mzlib+srep+LOLZ_ULTRA
xtool:mlz4f,l10+srep_new:392+LOLZ_HIGH

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