Hi Stanislas, I have a tendency to go overboard in most things. I have thousands of HD movies and series. I have two sons sharing the network so all our music, shared programs etc. Of course I have a lot of empty space. I will be using most of the features provided eg downloading using the qnap directly without the need to have any pc's switched on. I think I have a total of approx 45TB with my other nas server and including all the drive space in our pc's. Bit crazy I know but I don't have to use space sparingly.