Tried using the hex codes in a map file and unfortunately many of the emulators won't run the game as the hex code alters the name so emulators won't run the games or simply won't reconize the rom as a valid name. Due to the number of emulators I'm running (Over a hundred in Mess alone) I only have a handfull of my favorite games for each system under each. Since lists take up very little HD space and doen't slow GameEx down. I've wanted to have the ability to show all games I have for each system and show all the great media I have for each of the the systems and games. If a player wants to be able to play a game that shows up but is currently not available on my cab, its an easy matter to add that game from my removeable drives to the cab. Adding hex codes was easy because I had a sign made that said all games are avaible on request. Only the games in green are on the cab. Since I only had a handful of games for each system on the cab, I only had to add the color code to a few games for each system. If I a added a game or removed a game from a system, it was easy to go to the map file and change the hex code for the new or removed game. I also like the color idea for the regions. Currently I run a seperate emulator for the different regions, hacks, homebrew etc. Kind of like what you do for your Mario hacks. I have requested several times for folders for emulators, but I'm sure I'm one of a few that would like to see this so its not high on Tom's list. Using your utility, I will run a scan on my removeable drive for a system and create a mapfile for eavery game I have for a system. Then as you stated I will go in and add a hex coe for the handfull of games I have for the system on my cab.Doing this as a player scrolls thru the games list for a system they get to see all the great games that were for a particular system thru the videos, snaps, box art etc. This never fails to spark conversations and arquments about what was the better game for a system or which system was the best. If your utitly had a option to put a check mark next to the games you have on your cab and colorize those rom names that would be fantastic. I still wonder if the games would be reconized because oif the hex code and run. In closing looking forward to your release. I'm interested to see how emulators and GameEx handles the colors. Thanks as always to all you do.