Tutorial: Repack via extract + unpack
 

Watch this tutorial.

Thanks BRO!!!!!

Use 7zip or latest winrar!

Then you able to unpack them.

Beautiful tutorial Razor12911, Thank You. This info guys you will not find in anywhere.
(That's why i like the internet. : ) )

I've been trying to repack DMC : Devil may game it's built on unreal engine .upk
so what can i do to compress it does not have lz4 or zlib streams Please help
i packed it using srep+xz by (panker) it's 11,547 gb so after compression it's 8,314
is there a way to make smaller or there is not ??

Respect.

Yes. The game is compressed using lzo, you might wanna build a lzo precompressor.

great job, thanks for tutorial. can ask how i can get "recomp.exe" that you have used on the video, thank you.

Try to use this, unreal package decompressor

Can something be done with the Mass Effect 3 DLC archives? They are packed using LZMA, *.sfar is the archive format.

I want to put the extracted assets back to the original *.sfar format, but I'd like to maintain the original Checksum.

Sorry another question for Razor12911 and 78372 I have a lzo pre-compressor what do you razor mean by building an lzo pre-compressor ?
and 78372 if i unpacked every .upk file and packed them again is that going to give better compression or even the files are going to work with the game ?
Sorry to bother Good day

If you know how to unpack and pack it again, just use Injector maker to keep the crc, and your game should work as normal.
And compression, well you need to check that yourself, I have no idea, but there are possibilities to improve compression.

I know how to unpack it and pack it again i will check compression and thank you for your reply Good-Day

Haha, a video devoted to finding out how ~ I compressed ACU ;)
Are other RLT guys that bad, they can't figure it out by themselves and they should ask you? Hmmm.

Still, this is a good video for those, who want to knows how complex repacks are done.

repack are pointless specially yours using a lot of ssd write cycles and very very slow btw storage is very cheap today :D
i don't use pack/unpack only direct compression like pzlib/srep/zstd/...