Hi there, this is my first post. I have recently been having problems burning CD-Rs with my NEC ND-1100A. It worked fine for a while but now for some reason whenever i try to burn a CD the tray opens and tells me to insert a blank disc even tho there is already a disc in it. I have tried discs that have worked previously but no joy. (it still burns DVD-Rs perfectly tho) Any help would be appreciated thanx.