Hi again all! I have a Sony DRU-710A Dual Layer burner and on the box which it came in it says 16x. It seems like no matter what disk I insert i will not burn at anything other that 4x. I change the write speed just before the burn but once I click copy it automatically switches to 4x. I am using go4's. Am I using the wrong discs for this unit. It is taking me 30 minutes to copy directly from a burnt copy. If I burn a movie from my hard drive it takes just under 15. Am I maxed out in speeds here? I am using ritek go4's 4x-r and 4x+r.Am also using latest nero version as well. Also....what do most peeps set their book type setting to for burning purposes. I have come across players that will not play dvd's with the book type set to dvd-rom, the suggested setting reguardless of being plus or minus. Any insight on my probs will be awsome......HAVE A GOOD ONE!!