Plextor PX-740UF Dual-Layer DVD&plusmn;R External Drive 16X DVDR, 8X DVD+RW 4X DVD-RW, 16X DVD-ROM Record up to 4 hours of high-quality MPEG-2/DVD video on a 8.5 GB disc 48X/32X/48X CD-Write/CD-ReWrite/CD-Read Supports CD-TEXT and CD+G reading 2 MB Buffer Memory