Sony DRU-720A Internal DVD+R Double Layer/DVD+RW (4X+R, 16X+RW, 8X-R) Ultra-Fast 16X max Double Layer/Dual Format DVD Burner Works With 4.7 GB DVD+R/+RW and 8.5 GB Double Layer Discs Record Up To 4 Hours Of Video on Double Layer Discs 16X max DVD+R/+RW &amp; Double Layer DVD Burning Compatible with Windows 2000 or Windows XP Home or Professional Operating Systems