Attention! Apparently Verbatim lets the excess lengths blanks finished at different manufacturers, so that the quality delivered is a complete gamble. Contrary to previous customers review, gave my Plextor burner when purchased from me spindle goods "Manufacturer: Unknown 'from; while in the - Externally completely identical appearing - Charge in a jewel case (pack of 10), which I also acquired, as a manufacturer, "Moser Bear India" is read. A look at the microscopic lettering on transparent inner ring of the blank shows that manufacturers are different. The Moser-Bear-Charge (Jewel Case) provided on my Plextor Premium 2 relatively good firing results, while the error rate in the spindle-batch tenfold (!) Were higher. By "quality assurance", ie: the same quality of goods offered Verbatim has therefore apparently not heard ...