Yes, it's a one machine licence. However, you can download Windows 8 Pro direct from Microsoft for just £24.99 until 31 January 2013. When downloading you get the option to create a dvd, which is the same as the one sent as a product. Plus, you can take advantage of the media player for free offer until 31 Jan. The interface is very different but there is third party software available (Start8 etc) that will skip the metro interface and have everything running pretty much as it does in Windows 7. There's no advantage in having a physical DVD since you can create your own anyway and it will still only be licenced to the machine it's originally installed on. You can't sell the DVD later on if you decide you don't like it because it won't run on any other computer.