Wars just me getting the good blanks?

I've already 4 spindles used by the printable and unprintable and had not a false fire. And, although I use the BH10LS38 there was already an older LG, as the LTH blanks arose only. I admit that I was always .. because I full ungerne ausreize blanks with 4x burn. But that 4x has always worked. The Blu-Rays and even running all on my stand-alone Blu-ray player, there was from the outset never problems. For this, the longevity of AZO data layer.
Now I do not know why a third of buyers only award a star here. Apparently only I always get good and the bad, the blanks. Or is it still on their firmware etc.?