Lenovo Direct DVDRW/DVD-RAM Drive Plug-in Module Ultrabay Slim Optical Drives 0B47326 Complies with DVD forum and DVD-multi-recorder specification Records data and video to CD-R, CD-RW, DVD-R, DVD-RW, DVD+R, DVD+RW, DVD-RAM, DVD+R double layer, and DVD-R dual layer media 0.5 MB memory buffer underrun protection for reliable CD and DVD media recording Operates natively in the ThinkPad Ultra bay enhanced media bay Stores large amounts of data and video on DVD and CD media SATA interface