Modern iterations of Dolphin mimic the Wii’s exact software launch behavior. When you play a WAD, the emulator installs it to a virtual NAND directory so it can be safely executed. Method 1: The Direct Installation Tool (Recommended) GameCube & Wii Emulator Dolphin Setup Guide
For Virtual Console and WiiWare titles specifically, WADs are the only official format. You cannot find a retail ISO of Super Mario Bros. 3 for the Wii—it exists solely as a WAD-installed Virtual Console title. wii wads for dolphin
Yes, you can convert retail Wii game ISOs into installable WAD channels. This is how users create "WiiWare-style" versions of disc games. Modern iterations of Dolphin mimic the Wii’s exact
Download from dolphin-emu.org – the latest beta is fine. wii wads for dolphin