I have had my recorder about a year now. I have used several brands of dvd-r to record my movies. I seem to be having the problem when I go to dubbing and insert a blank disc it tries to read and says that it is non-recordable. I have this problem 3 times withing 1 year. I've taken it to the repair shop and they say nothing is wrong and I get it back home and seems to work fine. Is there something I'm missing here? Does it need to be re-initialized? Any help will be greatly appreciated.