So of course my requirements for this product were very high and were promptly ... disappointed!
From the supplied 10 blanks were unusable 6 after burning.
I have complained immediately to the manufacturer Verbatim. Although I the "burned" blanks had already disposed of, Verbatim has me immediately and helped without hesitation and free sent me 10 new blanks. DAS is excellent customer service !!!
Since the newly delivered blanks were absolutely perfect, it has probably actually traded in the first blanks by a batch with a production error. So I can continue to recommend the products of the brand manufacturer Verbatim with a clear conscience.