Lite-on SHM-165P6S 16X16 DVD-RW Super Allwrite Drive Super AllWrite DVD Writer, Write and Re-Write On All Formats ABS system reduces vibration and noise during recording and reading Automatically adjusts writing strategy & running OPC to provide the best burning quality SMART-X function adjusts CD-DA / VCD / DVD data extraction to fastest allowable speed according to both data request rate from host and disk quality One year warranty