I paid next to nothing for this kind of media yet burns well at 12x, 99 percent of the times. Wow.
I have found that quality scan is a waste of time as you would have to do speedtest anyway. It’s not very accurate and often mislead you to think it’s good media when it’s not or it’s bad media when it is not. You cannot tell if it will coaster or not. It is just for fun or for nostalgia reason, those with too much free time on their hands.
Most cheap media at 4x should burn 8x to 12x no problems. Why pay more for 8x or 16x when you can pay less, get the same quality and burn time? This media maybe 4x media that they tested fine at higher speed and then charge you premium price for it cause it’s been tested.