sorry for double post but i have registered now. So i have got Acer 6935G with Optiarc AD-7580S and my dvd disc 8.5 gb is Verbatim. I try to burn with CDBurnerXP 184.108.40.2064 and i got this same message4 like mate above. How can i make it work. I tried 4 discs and always the same. I can't burn anything on my laptop.