Lacie's 300985 IDE/ATAPI Internal DVD Drive is a convenient way to add DVD recording and writing capabilty to a home computer. Author professional, interactive video DVDs, store music files and archive digital photos - and share them all more easily. Accepts single-sided, double layer DVD+R discs, from up to 4.7GB capacity per standard disc and up to 8.5GB on a single dual-layer disc. Operating Systems - MacOS 9.1, OS X 10.1.2 or later, Microsoft Windows 98SE/2000/ME/XP Dimensions(WxDxH) - 5.8 x 7.8 x 1.7