Product information: DWU-14A 4x DVD±RW ReWriter (Silver) - OEMSony's Dual RW DVD technology means you don't have to worry about DVD formats. Create DVDs of your favorite home movies and even interactive slide shows that playback on most standard DVD players. Dual RW drives can burn all popular DVD formats and even CD-R/RW, so you're covered no matter which of the popular DVD formats becomes popular. Supports all popular DVD formats for maximum compatibility. Write speed - DVD+R 4x, DVD+RW 4x, DVD-R 4x, DVD-RW 2x, CD-R 24x, CD-RW 10x 1/4x. Read speed - DVD+R, DVD+RW 4x, DVD-R 2x, DVD-RW 2x, CD-R 24x, CD-RW 10x/4x, DVD-ROM 8x, CD-ROM 32x.