I have a D2C Wii with a WiiKey2 installed. I had a few leftover dvd+r's so I used them and did not get one coaster. No problems launching from the disc channel or the HBC using gamma or gecko. The Wii drive itself does not get louder or seem like it is working any harder than with a -r or a retail game. So in my experiences +r's are working just the same as anything else. I did change the booktype on my burner to burn +r's as DVD-ROM so that may be the problem for alot of people, but I guess as with alot of things, time will tell.