I've recreated your environment and can't repeat your reported behaviour at all. I can only assume that
a) a different program locks the files somehow (so turn off all kind of virusscanner, zip tools, antispyware stuff running in background)

b) the folders rights are wrongly assigned, so cmpro doesn't have access rights.

What you can do is, move the files to a different folder, or zipup the files. (and of course be sure you use an official direct MAME.exe import as database source).



Roman Scherzer