Okay, got it. Two options: Generic write control could be a feature, when Nero does not detect the buffer underrun mechanism. Possibility two: it could be the Smart-X feature that is not being detected by Nero. In this case I recommend to disable this feature as Smart-X does the same as Smart-Burn except for the “Optimized Data Extraction in speed on CD-DA/VCD” (whoever needs that).
I have this option, too. Furthermore it produces no coasters although I own the same drive. This could be for several reasons. Just make sure, that you drive has the latest firmware and your chipset is supported by the latest drivers (Intel inf updater or via 4in1 driver for example).