http://www.neo-geo.com/forums/showthread.php?236491-Something-I-ve-been-working-on/page6
I have discovered a button code in both the TOP LOADER and CDZ bios that takes you into a kind of test mode for the CD systems. Maybe this code is already common knowledge but if not.....
Hold 'UP+LEFT+B' from power on to access. Be careful as there is option to clear memory card in there.
Last edited by Razoola; Yesterday at 10:42 PM.