I have recently encountered a new problem from past discoveries that the Wii can't access an MP3 player but only charge it.
Well how it may seem that it doesn't charge it actually drains it!!!
this happened to my MP3 player that was a bran new Samsung tft display, it was totally drained and couldn't work at all major probs. I Had to reset the device and all and reboot the computer to recognize it, but I originally encountered this issue when a friend of mine bought a bran new iPOD one of those clip on shirt type 1 GIG. well he wanted to charge it so I said that he could use the Wii and it even looked cool plugged in, so good that we wanted to take a picture, LOL. well it ended up same deal, drained to the skin and dry. As I told my friend, it's like a dead man inna desert finds water.
So the outcome we both were able to save our devices, but it's just not good to plug anything into the USB port at the current moment.
and yes I am gonna make a report and send it to Nintendo
P.S. Let me know how you guys also feel and have encountered and help prevent future issues..