The nand.bin file is a dump of the Nintendo DSi's internal flash memory . Unlike standard DS emulation, which can often run games without external BIOS files, DSi emulation requires a valid NAND image to:
config.ini / layout.ini (if shared).: For advanced setups (like dual-monitor PCs), you can set the main window to and launch a second window set to Bottom Only nandbin melonds top
The term "Top" in this context usually means one of three things: The nand