That's pretty slick. I suggest using this in combination with Beyond Compare (or something similar) to do a diff on the contents of the directories. That way, you would see what files weren't matched. I think the best way to do that would be using: dir /b *.7z > roms.txtand dir /b *.png > snaps.txton both the snaps dir and the roms dir. Then, using whatever app you want, do a replace of '.7z' in the roms and '.png' for the snaps with '' (that's nothing, null, blank...). This will give you two text files with just the base file name that *should* match. Anyway, it might be easier to find mismatches/missing stuff that way.