In the world of Wii modding, a (short for Wii Archive Data) is a package containing an application or game that can be installed to the Wii's internal memory (NAND). Unlike a standard game disc or a large ISO file used with USB loaders, a WAD allows you to launch a game directly from the Wii’s home screen without needing to enter a separate launcher first. WAD vs. ISO: The Critical Difference
Because New Super Mario Bros. Wii was originally a disc-based game, most "WADs" found online for it are actually . These are highly sought after for: new super mario bros wii wad
These are much smaller packages used for system updates, WiiWare, Virtual Console titles, or "Forwarders"—shortcuts that point to an ISO stored on a USB drive. Popular Mods and Channels In the world of Wii modding, a (short