@unarc 125
- what u see in arc is a bug in arc itself it often happen to me , too . all u have to do is reboot ur windows \ move the data archive \ rename it and sometimes leave it for some time then this error will disappear :D but u don't have to delete the archive file & make it again

- for bf3 cas files .. better no to use any pre-compressor the difference will only around 50~100 mb so it's better with srep+lzma

@unarc 125
i forgot to tell u something ; I faced many times arc errors & corrupt archives in my windows 7 , this problem disappeared in my windows 8.1 . i don't know why :D but seems w8.1 is an arc friendly .

Batman Arkham Knight 52.0 GB TO 31.0 GB Pzlib+Srep+Lzma2:D
Unpacking, Process Hangs at 1.6% :(
http://uupload.ir/files/njo2_c.png
http://uupload.ir/files/qczd_d.png

Good, try uploading a data set from that game that make pzlib buggy.

.tfc - no problem
.upk = Process Hangs

I don't have this game so telling me that upk has problems isn't going to fix the bug.

18 gigabytes of .upk
it is unknown on what bug

Sniper Elite 3 Spanish

Repack size: 11.5 GB

Installation time: 11 min

Help me people with few question......

1. What's the difference between pzlib plz4 and reflate why in some games pzlib can't find good zlib streams as reflate.
2. I used lzma it consumes my 90% of my CPU power but when I extract it it caused me 90% copy uses again but when I used lzma 4x4 or causes 100% cpu with good results speed when I extracted it it causes me only 50% cpu uses why??
3. How to extract password protected archive without password which I don't know. Compressed with freearc
4. How to decompress data without using to much memory and CPU I want to keep memory usage about 1-2 g and 50%of cpu usage lc and id dirty up the compression.
5 what is Delta is it good to use?
6. It's the any latest version of srep. Is there any latest version of lzma and it's there any best alternative of lzma with good things.

Simorq

Try using cls-srep.dll to decompress using unpack

1. plz4 searches for lz4 streams, while pzlib/reflate -for deflate/zlib streams. reflate has better detector, than public pzlib. private pzlib probably have the same detection ratio as reflate

2. Because compression is heavier in LZMA. 4x4 utilize FOUR LZMA (de)compressors at the same time, but hurt compression ratio, cause compressed data is divided by blocks

3. You can't

4. Use lower dictionary settings for LZMA/srep

5. For certain types of data, it's not recommended by default

6. srep wasn't updated for years. There are better algos than LZMA in terms of general compression or compression ratio, but it's universal

Question:

how to set threads if i have a 4 core cpu?

pzlib:m1:st4:ct4:t4 or pzlib:m1:st1:ct1:t2
or just pzlib:m1:t4

Thanks Razor!

pzlib:m1:t4
This automatically set st and ct as 4 also.

mmm, does that means that both process are happening at the same time on the 4 cores? Is not that slow?

since i have a 4 core procesor should i set st2/ct2 to make it faster or that is just nonsense?

thanks!

(i haven't tested yet pzlib, that's why i'm asking how to make it work as fast
as possible)

one more thing: i was testing it and it was unable to depack the files from Castlevania lord of shadows 2.
I tested without any piping on compression and decompression and it stucks on one of the
files of the game:
Data00.packed
I used pzlib:m1:t4 for compression