Hi, can you give some directions on how to do this? This is exactly what I need to do. Or, if it's been covered before can you help point me in the right direction?
Set up a mature emulator?
I would figure that you could just create a new mame folder with the appropriate roms. Then, in your front end, add it as a second emulator.
Or, in your front end, create separate lists of roms, so you can switch between the regular & adult lists.
I suppose there are many other ways.