I understand the part about having parent roms and orphans. My question is how do I go about launching the correct one. Example. I have Dig Dug, Dig Dug Rev1, and Dig Dug Rev2. I am told that I have to have Rev2 to play the game but I still doesnt work. I am using the same romset as my mame .164 Do i have to put them all within a single zip? Also, I set my controls up in Retro Arch for Atari 2600 using a iPac joystick. the joystick uses the numberpad as its keybinds. After i bind the keys the joystick doesnt work but the usb keyboard i have attached still works with the number pad. any way to get RA to use the ipac controller instead of the usb keyboard? thanks guy, love the site