How to put Custom Music in New Super Mario Bros Wii on a Backup -No Riivolution-

A tutorial on how to use a backup launcher and WiiScrubber to put custom songs in New Super Mario Bros Wii, without having to use Riivolution.
For this we'll need a few things:
WBFS Manager:
BCSM-GUI:
WiiScrubber:
And a copied backup of New Super Mario Bros. Wii.

[Martboo]

Nice tutorial, but how can I modify the size of the music in the BRSAR. file with the hex editor?

[mariomadproductions]

@Hiyoko9000 Yes I get that but how can convert my mp3 ext to brstm? and can you edit the jump and coin sounds

[RetroDarioGaming]

What's the Bowser jr battle called

[Martboo]

Nice tutorial, but how can I modify the size of the music in the BRSAR. file with the hex editor?