if you`ve burnt your disc and you get these errors 1101 or 972 depending on which loader your using, then chuck your discs away. clean the dvdrw lens a couple of times to make sure lens is clean then do a another copy and fingers crossed should be ok. i use image burn and test first before burning. after nine disks in the bin i finally found out it was not the wii that was the problem.
been using +r dvd`s all the time with no problem , sometimes i can play a disc great. then another time it wont load get error 1101. very strange.
It's difficult to prove the +r thing but after hearing the grinding +r sometimes made I kept it to -r.
Not really doing much Wii stuff these days.