> So I would then have this?...
>
> folder: area51 -- contains: area51.chd & area51a.chd
> folder: area51mx -- contains: area51mx.chd
>
> DELETE folder: area51r3k
> DELETE folder: area51a
>

You only need an area51 folder with area51a and area51 chds in there.
It's fun to see you mention area51mx all the time. It's a completely different game ;) So...don't touch that one.

Roman Scherzer
ClrMamePro