Hi James, Have you made a utility that might do a pass of a directory or a group of directories (like Bill Ung's ROMSUM program) so one could generate large lists of ROM signatures? I have a pile of pinball signatures that I want to generate, but the process of using FIDE to grab each signature is quite slow (it doesn't remember what ROM directory you were last in) and I was curious what else you might have up your sleeve that would speed this process up? I'd like to turn a program loose on a directory and it generates a text table of all the ROMs (labeled with the directory and file name) in the directory and sub-directories. I wish to develop a simple board recognition script (not that simple, but...) so I can plug in any Williams (Bally/Stern later) MPU board and it will identify the game and then test the ROMs. The initial test would just be a few bytes from an address (say $6000) and compare that to a lookup table - once it figures out the game ID then it checks the ROM and then goes to see if the correct Flipper ROMs are installed and verifies them. Then on to the RAM etc ...probably will end up on the 9100 but for now I want to use the simpler 9010 as I haven't had the time to play with the 9100s I have lying around the shop. I think the 9010A is flexible enough to handle this. John :-#)#