Double layer disc with a matt silver surface verbatim double layer discs provide a massive 85gb 26 for 8cm products storage capacity the double layer of recording has been made possible by the creation of a new substrate layer that sits in between each recording layer that allows the laser beam to record on both layers once the first layer has been recorded the laser re focused to record on the second layer key features write once double layer dvdr 85gb native capacity 8x write spee