This is your problem. Why burn 16X discs @4X? :eek: - if it's from the same old song "burn at slow speeds for video quality", you've ben mislead by uninformed or outdated sources on the net. This is a myth. Sorry for you that you've been caught in the trap.
With modern high-speed media, it's actually the opposite: slower speeds result in lesser burns (there are exceptions, as always).
While Verbatim 16X -R (MCC03 RG20) is "multispeed" (can be burned at slower speeds in most burners), 16X +R (MCC004) will give lesser results at slow speeds in many burners.
Burn MCC004 @8X minimum, but the best results in most burners will be @12X]. 16X is OK, give it a try! :iagree:
Hope this helps