The internal burner of my laptop was moody and choosy exchange would have been senseless consuming and expensive, so I looked through the reviews and decided on this visually appealing external part. In fact, plug & play without unnecessary Zickerei with low-ROMs supplied software because of good freeware burning tools from the Internet under Windows 7. Very good: only 1 USB port needed runs smoothly via USB hub. Although not rotate silently, but easy to ignore and without rattles, with the price not verlangbar.