The usage of Newer Super Mario Bros. Wii v1.30 requires specific homebrew infrastructure on the Wii console:

Fixed a bug where Yoshi could eat icicle platforms and restored him to level 5-2.

Because this is a mod, do not attempt to run the original disc while the save data is on your Wii. Use the USB Loader exclusively.

While the mod itself is a free fan project, downloading a pre-patched

wit check "SMB_Wii_v1.30.wbfs" --verbose

is an expansive, fan-made unofficial sequel to Nintendo’s New Super Mario Bros. Wii . Version 1.30, released by the Newer Team , serves as a major stability and bug-fix update for the massive mod. Key Features of Newer Super Mario Bros. Wii