Thanks for sharing, i found solution, and discover what i doing wrong with freearc. I leave it without solid size command, like this:

arc.exe a -ma9 -dsg -lc4096 -ld4096 -i1 -ep1 -r -ed -w.\temp -mciv5 civ5v5.arc "civ5\*"

Now the solution to me is to make solid block bigger than group of data files, for example there has 5gb of ogg files, i need to keep solid block bigger than 5gb to freearc group all ogg files into a single compression, like this:

arc.exe a -ma9 -dsg -lc4096 -ld4096 -i1 -ep1 -r -ed -w.\temp -s8192m -mciv5 civ5v5.arc "civ5\*"

Problem solved.

By default, apparently, freearc is using solid=1gb, thtas because it dont get 1.7,1.5GB of same files together to compress.