Lite-On 24x iHAS224 Internal Lightscribe DVD Writer Bundle with Nero Burning Software and Cable Accessories (SATA Optical Drive) Lite-On internal DVD drive bundle includes a Nero burning software, SATA cable, power connection cable, and 4 mounting screws Operating system requirements : Windows 2000, XP, Windows Vista. Pentium 4 1.3GHz or higher. 128MB RAM or higher. 9GB of free space required for creating a DVD image file (9GB for double/dual layer; 5GB for single layer). Maximum burn speeds of 24x for DVD-R/+R and 48x for CD-R. Maximum read speeds of 16x for DVD-R/+R and 48x for CD-R. Maximum DVD Dual Layer (DL) burn speed at 12x 2MB Buffer with Smart-Burn technology, automatically adjusting writing strategy and running OPC to provide the best burning quality and avoid Buffer Underrun error as well