I have now burned about half of the blanks from a 25-spindle and I can only say that I had no problems. Each combustion process has been successful and problem-free. That here anyone complaining that he had to throw away half of the discs, I can not understand at all (except, of course, with me could be from now on not only burn more, then I would therefore come to the same percentage ... ^^) ! Am fully satisfied with Verbatim. Have pure caution whatsoever a low write speed taken, since I have not really in a hurry and it would rather know that everything went correctly! What moved me also to buy these blanks at Amazon, the prices in various electronics markets were. What is there demand for a ten pack already outrageous, if you know the prices on the Web. I was, as always fully satisfied with the shipping from Amazon and all Drumm and whistles! Thumbs up !!