Hello everybody Have these blanks bought because I was looking for printing blanks. Shipping was fast as always and packaging was also OK When I burned the first blank was the times up to max.4 burning speed in order. Then the problems started walking. With 30% fuel progress with Nero always an abort and the blank was broken. Have ordered with 10 pieces each 2 spindles, half of which was in the end the Committee. I will no longer buy these blanks, nor recommend.