Ds 8acsh is a multi function drive with power saving slim size and ultra light weight that it meets notebook computer as well as all kinds of compact or external applications dvd family write speed dvdr pcav dvd r pcav dvdr9 pcav dvd r9 pcav dvd ram pcav 8x maximum 8x maximum 6x maximum 6x maximum 5x maximum read speed dvd rom cav 8x maximum rewrite speed dvdrw zclv dvd rw zclv dvd ram pcav 8x maximum 6x