[KaktoR]

I just can say it is required

Here with batch file

E:\_Compress\#FA_example>arc.exe a -ep1 -r -ed -s; -w.\temp -mxtool:ue4,k0x6005F03B0D2DABCD75892C80958FFB00CBA5437AD37EB4BFCD5960FFE0C4E12D+xtool:reflate data.arc "pack\*"
FreeArc 0.67 (March 15 2014) creating archive: data.arc
Compressed 1 file, 552,580,759 => 995,325,928 bytes. Ratio 180.12%
Compression time: cpu 0.44 sec/real 19.92 sec = 2%. Speed 27.74 mB/s
All OK

E:\_Compress\#FA_example>arc.exe a -ep1 -r -ed -s; -w.\temp -mxtool:ue4,k6005F03B0D2DABCD75892C80958FFB00CBA5437AD37EB4BFCD5960FFE0C4E12D+xtool:reflate data.arc "pack\*"
FreeArc 0.67 (March 15 2014) creating archive: data.arc
Compressed 1 file, 552,580,759 => 552,581,691 bytes. Ratio 100.00%
Compression time: cpu 0.48 sec/real 5.96 sec = 8%. Speed 92.64 mB/s
All OK