Hacking Devolution won't play CleanRip backups

[Wellington2k]

I backed up my copy of Luigi's Mansion to play with Devolution on my vWii. It finds the iso, but when I try and start it, all I get is a black screen and then it takes me back to the Homebrew Channel.

What files do I need to put in the /games folder to play the backup? I just have the .iso file in it currently.

Thanks!

EDIT: I just found out that you have to verify it on a regular Wii. Terrible. You need a Wii to play a GameCube game on a Wii U...