Unfortunately I can not tell much good about this blank. Was burned with the LG GGW H20L burner. 6 of 10 blanks I've burned. Conclusion 3 well described and well readable in the Panasonic DMP BD65 prima Blu-ray Player. 3 pieces incorrectly. In 2 of the burning process was interrupted after a few minutes. The locations of the blanks described showed significant, round spots on the bubbles look like under the protective layer and are widely between about 1-2 mm. A blank was indeed fired by the system error-free, however, the same bubbles are also here in the outer region recognizable. Also playing is not possible in this area. The player hangs. So at the moment I can not ausprechen my recommendation for this item.