Sony NEC Optiarc AW-Q170A-B2 18x DL DVD&plusmn;RW Dual Layer DVD RW Drive Writer Black Interface:IDE2 MB buffer,140 ms average seek time (DVD),130 ms average seek time (CD) DVD Speed:18x maximum write speed (DVD+R);8x maximum rewrite speed (DVD+RW);8x maximum write speed (Double Layer, DVDR);18x maximum write speeds (DVD-R);6x maximum write speeds (DVD-RW);16x maximum read speed (DVD) CD Speed:48x maximum write speed (CD-R);32x maximum rewrite speed (CD-RW);48x maximum read speed (CD) Performance:2 MB buffer;140 ms average seek time (DVD);130 ms average seek time (CD);Interface:IDE Supported Formats: DVD-RAM; DVD+R; DVD+R DL; DVD+RW; DVD-R; DVD-R DL; DVD-RW; DVD-ROM ; DVD-Video; CD-R; CD-RW; CD-ROM ; CD-ROM/XA; CD-Audio ; Video-CD; Photo CD; CD-I (FMV); CD-Extra; CD-TEXT