Samsung DVD RW +/- DUAL LAYER DRIVE FOR Q1. - AA-ES1U12B DVD RW +/- DUAL LAYER DRIVE FOR Q1. Dual-layer DVD writer burns DVD-/+R discs at 8x speed USB 2.0 Plug and Play connectivity Super-slim profile for easy portability Measures 9.3 by 7.4 inches and weighs just 14 ounces