Gamecube usb loader

Hi guys, I have a 4.2e softmodded wii to play backups from my wbfs WD passport 320gb drive, all works fine, I was wondering if there was a way to play gamecube games from a usb loader? if so how? if not for gamecube backups on disc do I burn to normal dvd-r or a mini dvd-r? And how would I play those?

Thanks for any help, muchos love.

-Kai

ONLY way to play GC ISO is hardmod [WODE]. Can't do it any other way.