> I was just curious if there was a way to check > what version ROM sets are. It appears there is no tool to do that.
You could probably set up multiple versions of MAME in clrmamepro and scan your ROMs with each version to see which results in the most complete sets, but that would be fairly labor intensive.
The problem is that a zip of ROM files for a specific game may go through many versions of MAME with no changes at all, so there's no definitive way to look at a given zip file and say that it's for a specific single version of MAME. Now take this problem and multiply it by 6000 or however many sets there are in MAME and you see why such a tool as you describe will never exist.