Hmm.. i don't know how it works with Amazon. The best way is to buy directly from Laminar Research on x-plane.com, IMHO, but now that it's done...
Do you have to enter a product key?
Are you able to copy the content of every dvd on your computer?
Are you able to read a film for example, from your dvd drive?
Note that I'm not affiliated with Laminar Research, I'm a normal X-Plane user.