> It took me a while to figure out how to get the app to look for the ROMs on the
> SDCard. I think I got it right. It shows /mnt/external_sd/ROMS/MAME4all
Keep in mind that Android is Linux, so capitalization matters. If you set the path as shown there, but the card actually contains "ROMs/MAME4All" it won't work, for instance.