Its obviously using the download ID, as this is different in each case, so downloading multiple teams with the same stadium from different users results in a different download ID for that stadium, hence it being saved again... they should be using the stadium name as identifier and ask to overwrite if it exists.@Jerm and @surendar: Correct me if this isn't the case, but in my experience when you download a new team from the Academy, it downloads all of the stadiums attached to that team regardless of whether you already have it downloaded. So with Adelaide Oval for example, that could be Australia, South Australia and Adelaide Strikers, plus one other team.