I had always been satisfied with the products and the previous Verbatim pack I just exhausted did not cause me any problems but this time, half of the CD I tried to use proves unfit to print: the recorder indicates "No CD" and a check with the XP Explorer detects nothing in the drive when normally (and still 2 once!) it indicates 702 MB! So it is very expensive in addition to the inconvenience of having to exercise control CD before burning. I keep them unusable CD available to the seller in the hope that he wants to react well.