The description of this "Doctor In ...." box set says that there are 6 discs in the box, but NOT what films are included. I think Amazon could take a little more care to tell us what is actually in it so that we can work out whether this really is good value for money, or what else we need to buy to complete the collection. Also, why do they include reviews from people who obviously haven't seen the dvd set - one reviewer thinks he's reviewing the TV series, and several others refer to "this film" when there are supposedly 6 in the box.
I just ordered this copy from a 3rd party. My guess is it's no longer in print but some sellers still have it. The newer copy released the year you made your posty lists the titles. Also it shows 7 discs in the description not 6. Maybe this was updated after you made your post 2 years ago, I do not know.