I am using the Good rom sets for my GameEx installation in zipped 7zip archives. This has worked well for me because it gives me easy access to Japanese and translated Japanese roms for some games while uniting all the different versions under one name so that the game list doesn't get cluttered. At first I just used the basic names for the games like this: "Eliminate Down.7z" Then I saw that I got a low rate of game recognition (at least from Emu Movies) from this naming convention and I experimented a little to see if I could get better results. What worked out much better was giving the 7zip file a name based on the American (if applicable) versions of the rom inside. So the zip files got names like "Eliminate Down (J) [!].7z" and "Steel Empire (UE) [!].7z" Most Nintendo and Sega games got a high rate of game recognition both from the GameEx database and Emu Movies with this scheme. For TurboGrafx 16\PC Engine games the GameEx database got most of them while Emu Movies only got about half of them, all but two of these was Japanese so I guess that the Emu Movies database just isn't very good with Japanese releases of PC Engine games. Not a problem. The GameEx database however is and I'm really impressed by it. There still remains a lot of games in total (for all systems combined) that either has not got any artwork for it or that is not recognized by the database. The missing artwork is not much of a problem since I can get it later manually, but the games that is not recognized by GameEx is something I want to get right from the beginning since all statistics for a game is lost (not lost but the new name gets a new entry) once you change the name of the rom\zip file. It also is easier to see which games are missing artwork since you can go and look into the NOT FOUND folder in GameEx\Assets.I have not found any way to see which games that are not recognized by GameEx's database, except looking at each game manually, but maybe there is an easier way? I read two places at the forums that somebody recommended using the NoIntro naming convention for rom sets instead of the Good Set naming convention. I have not yet tried to rename all of my sets with one of the rom managers, but I tried renaming a few roms myself using the names from the NoIntro dats. But it did not work as well as I had expected. With my old naming scheme "Street Fighter II - The World Warrior (U) [!].7z" and "Street Fighter II Turbo - Hyper Fighting (U) [!].7z" was both recognized by the GameEx database thus getting appropriate entries for year of release, publishers, description, etc. But Emu Movies did not recognize these entries so I got no artwork or screenshots. Then I tried to rename them using the names given in the NoIntro database file: Nintendo - Super Nintendo Entertainment System (20141008-233107_CM).dat Street Fighter II (USA).7z and Street Fighter II Turbo (USA).7z was their new names, but to my surprise the problem was reversed. Now Emu Movies recognized the entries but the GameEx database did not. I thought that maybe the problem was the .7z extension so I removed the 7zip files and extracted the American roms inside. I then renamed them exactly as their entries are written in the NoIntro dat file: "Street Fighter II (USA).sfc" and "Street Fighter II Turbo (USA).sfc" But the problem remained. Emu Movies recognize them while GameEx don't. Since it seems strange that GameEx would not recognize such a common naming format as GoodIntro the most likely scenario must be that I gave done something wrong, but I am not sure what. Does the GameEx database use more than just rom names for recognition? The NoIntro database lists the rom checksums too. Do you think that GameEx will fail to recognize a game if it has the right name, but the wrong checksum? I would also presume that the roms using [!] in the Good Rom sets are the same roms with the same checksums as those in the NoIntro set. So the checksum should not be the problem. The Good Set games are named like this: "Street Fighter II - The World Warrior (U) [!].smc" while I presume that NoIntro set games are named like this "Street Fighter II (USA).sfc" I haven't tried using a rom manager to rename my files yet, but it should give the same result and I'm also not sure if any of those works well with 7zip files so that all of my roms therein are retained. I'm not yet ready to give up the convenience of being able to play different language versions when I want just yet. If there are anybody here knowledgeable about this subject I would be grateful for any help with the matter.