Pioneer DVR-A18M 22X Internal IDE/ATAPI DVD/CD Writer (Black) Writes up to 22x on DVD-R/+R 4.7GB (single layer), up to 12x on DVDR/+R (DL) & DVD-RAM, up to 6x on DVD-RW, and up to 8x on DVD+RW media. Writes up to 40x on CD-R media and up to 32x on CD-RW media Reads DVD-ROM, DVD-VIDEO (single & dual layer), DVD-R, DVD-RW, DVD+R (single & double layer), DVD+RW & DVD-RAM. Reads CD-ROM (Mode 1& 2), CD-ROM XA, CD-DA (CD Audio), Video CD, PhotoCD (single/multi-session), CD EXTRA, CD-Text, CD-R, CD-RW Interfaces as an ATAPI device, IDE Data Transfer Mode: PIO Mode 4, Multi Word DMA Mode 2, Ultra DMA Mode 2, Ultra DMA Mode 4. Installs Vertically or Horizontally. Works with Microsoft Windows operating systems including:Microsoft Windows 7, Vista Home/Business/Ultimate, Windows 2000,Windows XP, and Windows ME Weighs less than 2 pounds (0.7 Kg). Physical Dimensions: 5.83 (W) x 6.74 (D) x 1.67 (H)(148mm) (171.2mm) (42.3mm