CD-R 1,Grade A in quality 2,700MB / 80MIN / 52X ... ,Bad rate :<0.3% or <2% 4,Excellent light stability CD-R printable type: Can print your own logo on the ... DVD by your own side. with the best quality.CD-R : Inner packingIndividual : 1 pc/jewel case ,or 1 pc/ ... anti-moisture protective coating can save longer , well protect data. CD-R with 52X running speed