I'm not sure if this is a ClrMAMEPro bug or something that was missed in MAME. When rebuilding the galpanib and natodefa romsets, something is wrong because they're not being rebuilt correctly and ClrMAMEPro reports missing files within the romsets. I don't know the inner workings of either program but if you could take a look at this behavior, it'd be cool. Btw - thanks for a great util.