This is how I proceded to run New Super Mario Bros. (NTSC) DVD on my softmoded wii 4.0
How to run New Super Mario Bros. Wii on DVD:
1. Get the patched NTSC version of New Super Mario Bros Wii
2. Install CIOS rev 15 through Homebrew Channel
3. Install USB Loader GX 1.0
4. Run New Super Mario...