I started using these discs as they are supposed to be A+++ and some sort of guarentee!!! They are the same dye as the Datawrite blues that I have had no problem with but after using 25 of them 5 have failled between 10-40%. Funny I never had a burn failing on a -R before even with some of the cheap ones. Anyone had problems or know if you can return them, to who??? As 5 out of 25 is 20% failure!!!