WII!!! discussion

OK I browrowed Wii Music and I want some songs on My IPod, but it don't know how. So answered this if you played Wii Music:
It it actually possible in some way to put the videos you saved on the computer? and If it is, how?

I guesse you just have to plug in the computer with your wii

A neighbor of mine says that will mess up the wii
another question for Wii Music: Is there such thing as a Mario outfit or Angel outfit?? I found this in a website as I was searching for ways to unlock more song or something.
http://www.gamewinners.com/Cheats/ind...