Hi and welcome to the forum, SmileMan!
There is a later firmware for that burner to install, version A106. You should find it here in 'DeviceDriver'. http://ca.lgservice.com/index_b2c.jsp
I just doubt that even if you install it, that it will deal with those 'modern' 8x DL discs, as the burner is rather old. I think the best solution is to get a new burner that deals with those discs.