Well I decided to use but need mprecomp decent arc.ini everyone who tried the error. I've done 3 or 4 arc.ini however unsuccessfully. That is what I have in arc.ini
[External compressor
recomp]
header = 0
packcmd = precomp -slow -t-j {options} -o $$arcpackedfile$$.tmp $$arcdatafile$$.tmp
unpackcmd = precomp -o $$arcdatafile$$.tmp -r $$arcpackedfile$$.tmp
[External compressor:srep]
;options = l%d (minimal match length, default=512)
header = 0
packcmd = srep {options} -a1 -m3f $$arcdatafile$$.tmp $$arcpackedfile$$.tmp
unpackcmd = srep -d -s $$arcpackedfile$$.tmp $$arcdatafile$$.tmp
* the problem is that he always compress to the 10% error in something related to
$$arcpackedfile$$.tmp $$arcdatafile$$.tmp
