There's no way of exiting out once the program starts, so you will need to turn it off and redo the step to load it if you wanted to change games. The CDs themselves can actually contain both sound and video respectively. Unofficial 3DS builds. Sonic 1 and 2 3DS. An alternative device is the Super Flash, by Tototek, which allows multiple games to be burned onto a flash memory chip in a cartridge.
nest...