Sony Optiarc America has announced the DRX-S90U dual USB bus-powered external DVD burner for the U.S. It can burn dual-layer DVD+R at 8x speeds, regular DVD+R and RW media at 6x and CD-R and RW at 24x speeds.
Just be aware that it requires two USB 2.0 ports to power the burning speeds. The device is compatible with both Windows (XP or higher) and Mac operating systems. You also get the Nero 10 CD/DVD burning application with your purchase. The Sony DRX-S90U slim portable DVD/CD writer is $69.99.