Now Sony AME 8mm Mammoth 2 (Advanced Metal Evaporated) data tape delivers 100% pure cobalt for high retentivity. This is a patented process for depositing a pure metal magnetic layer directly on the basefilm without adhesive or binders. The DLC (Diamond Like Carbon) tape surface is protected by a smooth carbon coating that is nearly as hard as diamond and 20 times harder than metal oxides. The benefit from 8mm AME mammoth technology is maximum recording performance. The benefit from DLC technology is maximum reliability and life.