Mac Pro owners enjoy two bays for internal optical drives, but as the rest of us don't have this luxury, a portable external disc burner is the natural choice for a second, such as the LaCie Mobile DVD±RW. LaCie's Portable DVD±RW is powered by your Mac's USB port, or two using the bundled USB power lead if it needs more than one supply – though it managed fine with one port on both our aluminium iMac and MacBook Air.



Link: TechRadar