unfortunately, something seems bugged with using info option as It seems to stop at different points before it completes the entire job. I tried the 422 directories of 145 set and it never completely finishes. Also, separating the directories so only 50 directories in a folder didn't seem to make a difference and it stops at random points.
I also notice unlike the other options that CHDMan FE window drops from the screen and taskbar and there is no progress bars going during info operation.
[EDIT] actually it could be that chdman hangs which is the reason the job randomly doesn't finish. There is bug report on mametesters about the hanging of chdman.