Hey i thought i might point out that i was just using the Dragon Media player, and i got a code dump error.
Nothing bad happened though. I just needed to turn off my wii by holding the power button for 5 secs. Its working perfectly fine.
When it happened i was looking at the menu(opening and closing it) and continually changing the themes while playing a song.
I just thought id let someone know and see if they can look into it.