HP DVD&plusmn;RW DL LightScribe SATA Optical Disk Drive 615646-001 575781-501 DH-16ABLH HP DH-16ABLH Optical Disk Drive HP Part Number: 615646-001, 575781-501 Write Speeds: ? CD-R: 40x ? CD-RW: 40x ? DVD-RAM: 8x ? DVD-R: 16x ? DVD-R DL: 8x ? DVD+R: 16x ? DVD+R DL: 8x ? DVD-RW: 8x ? DVD+RW: 8x Read Speed: ? CD: 40x ? CD-R: 40x ? CD-RW: 40x ? DVD: 16x ? DVD-RAM: 16x ? DVD-R: 16x ? DVD-R DL: 16x ? DVD+R: 16x ? DVD+R DL: 16x ? DVD-RW: 16x ? DVD+RW: 16x Interface: SATA