This version is "almost" there. but not quite. Has an annoying bug: Say you try to join 4 chunks, it will always ignore the last chunk. Say you get the 3 combined chunks, and try to join the 4th to it> Fails. Have tried all the instructions: List view vs. Icon view, Click first, then shift clik rest, choose all, etc, but still no go. This is the only tool of its kind for mac, so whatcha gonna do?