Hacking A noob question, but...

[st40611]

I recently got my NTSC USA Wii modded by my uncle's friend, and lately nothing that's "not suppose to be played by a regular Wii" is working.

Kirby's air ride Jap-Gamecube DVD - Disc unknown.
The Wii SNES/NES/etc games by Jap Happy - Disc unknown.

I haven't tried any Wii ISOs since I don't think it'll be worth the time if the Wii is unmodded after all, and I am currently getting Gamecube ISOs.

Am I suppose to do something to boot these discs? I currently have a 3.0U (Weird after a MP3 Update) firmware.