Sony NEC Optiarc AD-7221A 22X DVD&plusmn;RW DL IDE Drive w/LightScribe (Black) Sony NEC Optiarc AD-7221A 22X DVD RW DL IDE Drive w/LightScribe General Features: Black bezel 22x write speed (DVD+R) 8x write speed (DVD+R DL) 8x write speed (DVD+RW) 22x write speed (DVD-R) 8x write speed (DVD-R DL) 8x write speed (DVD-RW) 12x write speed (DVD-RAM) 48x write speed (CD-R) 32x write speed (CD-RW) 2 MB buffer 160 ms average seek time (DVD) 140 ms average seek time (CD) E-IDE/ATAPI interface