Lite-On Internal Double Layer Blu-Ray&nbsp;Combo Drive (IHES112-04) Drive Type: Internal Double Layer Blu-Ray Combo Drive Write: DVDR: 16X DVDR9: 8X DVDRW: 8X/6X Read:CD: 48X DVD: 16X Access time: BD - 250ms; DVD - 160ms; CD - 150 ms Buffer Memory:?2 MB OS: MS Windows 7/Vista (32 or 64 bit version)/XP SP2 or later