I use Platinum blanks for over 4 years and none of them know any surface changes (decomposition, as described in other reviews) on. Neither my Teac, Mitsumi, even with my Toshiba burner it came because of the blanks to firing crashes. The old discs are read without problem. It should be noted however, not every blank adapts to each burner ... on my very old burner a Teac I possibly could for example use TDK blanks ... more information on blanks and burner combinations can be found online and at the PC magazines.