Hello. I am wondering if anyone else has used Memorex DVD-r's for their Wii backups. I am using them, burning at 4x. They'll read and play just fine the first time, but if I leave the disc in for a while and try to boot it again, it just spins and I get a Wii error on a black screen teling me to eject the disc and power off the system. Memorex DVD+R's seem to be working fine. I have a Wiikey installed. Any ideas?