Gateway UC73 DVD±R Double layer Ultra Speed Plus CD-RW - AD-7640SDVD/CD Rewritable Drive9TDW081EI65G - AD-7640S - 513197-004Manufacturer: SonySony NEC Optiarc AD-7640S SATA DVD±RW Dual Layer 8X SlotLoad / Sony Optiarc AD-7640S 8x DVD±RW DL Slot-Loading Notebook SATA DriveFeatures/Specifications: Burn and share images, music, home movies and documents on DVDs and CDs with the Sony Optiarc AD-7640S 8x DVD±RW DL Slot-Loading SATA Drive Slot-loading SATA interface 150 MB/s data transfer rate 8x maximum write speed (DVD±R) 4x maximum write speed (DVD±R DL) 8x maximum rewrite speed (DVD+RW) 6x maximum rewrite speed (DVD-RW) 5x maximum write speed (DVD-RAM) 8x maximum read speed (DVD single layer) 6x maximum read speed (DVD double layer) 24x maximum write speed (CD-R) 24x maximum rewrite speed (CD-RW) 24x maximum read speed (CD)Supported Disc Formats: DVD-ROM DVD±R DVD±R Double layer DVD-RAM DVD-Video ROM CD-ROM CD-R CD-RW CD-DA CD-ROM XA Video CD CD-I Photo CD CD-Extra High Speed CD-RW Ultra Speed CD-RW Ultra Speed Plus CD-RW