USB Combo Drive 1.Write speed: 16X double layer, DVD-R, 52X CD-R 2.Rewrite speed: 12x DVD+RW ... 316x DVD+RW, 32x CD-RW 4.Rea USB Combo DriveDVD Drive /DVD Burner /DVD RW Burner ... : Write speed: 16X double layer, DVD-R, 52X CD-R Rewrite speed: 12x DVD+RW, 16x DVD+RW, ... ROM, DVD+/-RW, DVD+/-R, Photo CD, Video CD, CD-DA, CD-Extra, CD-Text, CD-R, CD-RW, DVD-RAM Disc Diameters 12cm/8cmMTBF ...