The best (and, from what we know, only) tool for working with CHD files comes from their source, from MAME itself. If you’re not using a command-line but a GUI-based variant of MAME, you might need to run a scan/audit of your ROMs first. Place those ROMs in MAME’s ROM subdirectory, place your CHDs in the same spot but in sub-subdirectories with their own name, and then try running the ROM with MAME.

For that, since it remains a legal gray area, we can only say that Google is your friend. You will have to find the ROMs that go with your specific CHD file and any extra files related to the hardware on which the game ran.

More information - Gridlee, a MAME emulator that has crept into the App Store. ini file, match the original game control panel button colors. Ive got the rom directory pointed to my disk images. Sounds simple enough The application is no longer available in the App Store. It differs from MAME is that you can run on Linux and Mac OS X. Ive got Mame and mameui installed and working with arcade games, but cant figure out how to use it with console/computer games. The CHD files themselves contain the game’s assets but not the game itself. Until recently I was using AppleWin to emulate Apple II games, but thought Id check out some of the other options as well. You will need the actual ROM files that accompany them to be able to use them. The reason we mention all this is because, CHDs on their own are usually useless with MAME.

How to use mame emulator on mac