Philips Internal High Capacity Drive PBDV1648S is a 16x dual format drive with 8x DVD+R DL writing speed, which provides 8x DVD+R DL and 4x DVD-R DL writing speed on 8.5GB dual-layer media and 8x recording speed on DVD+RW media. It has 16x DVD+R top performance, which can burn videos, audios and images to DVDs or CDs. It has safe and reliable seamless connection burning and dynamic calibration to ensure the quality of high speed DVD writing. One disc can hold 4 hours of DVD quality video.