If your coversets are for a numbers of cases or a spanning spine then make sure that your preview allows a member to see not only the span but all of the covers as well.
NOT just the spines and front image of 1 dvd
Good example here:
Scary Movie 1,2,3,4
without the additional previews of each cover you wont know what your getting....
Believe it or not people actually want to see the cover before they download it :t