These are all good advices, and to add to it here is my bit of wisdom (unless it has changed): The "auto downloader" which you enable within the GameEx Setup Wizard, will scan your roms, then download all artwork it finds that makes sense and rename/name it to match (and put it in the folders you have already predefined in the Setup Wizard). However, there is a second more controllable external program that comes with GameEx. You can find it in Start> All Programs> GameEx> Config i believe. It may be called Artwork Downloader or something like that. With thiis app/program, you can manually point it to your rom folder, and it will download everything it finds that matches.