The dual-layer HD DVD-R disc is based on the same disc structure as current DVD discs, HD DVD-ROM discs (read-only), and HD DVD-RW discs (rewritable): back-to-back bonding of two 0.6 millimeter ...

6X DVD-R in dual layer, 6X DVD-RW and DVD+R recording and more…) and is powered by a USB 2.0 connection, eliminating the need for an AC adapter, making this optical disc drive an excellent fit ...