I already knew Lightroom, but I wanted to have a newer version came for me just Lightroom 5 in question. As a student I was the Student and Teacher Edition purchase (on the account of my father). Since I did not want to wait for the CD / DVD I've bought the version for download. The download went smoothly, only the registration at Adobe was not self-explanatory. I had, which was not provided, write a short email to Adobe and got within 30 minutes (on Sunday !!) the appropriate code to use my version.
As an advantage, I feel in the Download that I can down loden the software again at any time if I have a new computer or want to install it on another computer (this is possible, one can not but both computers use the same time). For a new installation I do not have the CD / DVD looking but simply call again from Amazon.