... resolution button life>=3,000,000times Internal Blu-ray ReWrite Drive ,it also can be a blu-ray player Write Speed: BD-R: 4X ... , DVD-R Dual Layer, DVD+RW and DVD-RW discs with diameter of 8 or 12 cm CD: CD-DA, CD ... Access Time: BD- 160ms; DVD- 160ms; CD- 160ms Color: Black blu-ray daives and blu-ray player