This is
LZMA2, it uses
7zip. it is also known as
XZ.
Side Notes : I have some work to do, use either a different compressor for now or wait till someone helps or i return.
Edit : I am back, so you see the
default section up there? just remove it.
Like this :
Code:
[External compressor:lzma2]
header = 0
packcmd = 7z.exe a -txz -an -mcrc=0 -m1=lzma2{:option}:mf=bt4 -mmt=on -mx9 -si -so <stdin> <stdout>