Emulator

This would be helpful for things like randomizers that generate several ISO's for the same Game ID. I play a lot of Metroid Prime/Echoes rando and often have an async multiworld that can go on for days/weeks, and would like to play a solo seed while I wait to receive progression. However this means I need to go to the config and switch memory card A to the correct folder.

The way I would see this working is adding a new option to Config / GameCube / Device Settings, where you can select "Per-Game" or something of the like. When this is active, loading a game /foo/bar/game-HASH.iso would read/save to /foo/bar/game-HASH.gci (or .raw if the gci file name is hard-coded into the game, I'm not very familiar with the GCN save formats).