I am brand new here so I apologize if I am not super-technical. Thanks in advance for any help. I bought a Sony DRU810 DVD burner installed it in my two month old Dell 3000. It worked fine, with the exception that it would not burn any faster than 1.5x. The computer already had a factory installed DVD/CD-RW drive in the top slot. I put the new drive in the second slot, and connected it to the same ribbon that that already existing drive was connected to. I set the new drive as slave. I backed up two DVD's and both came out fine, but even though I had it set to burn at 4x, it only went at 1.5x. The media I had was approved for 8x, so that is not it. Any ideas what may be causing this and how to fix it? Thank you much.