I imagine Amazon are the same as everyone else in this regard. You keep a list of DVRAB you want to see, on their website, sorted in priority order. When you return one disk they send you the highest priority DVD that they have available.
They don't send you DVRAB that you've not asked for! It's not like some "book of the month" clubs. If you don't fancy it, don't put it on the list.
They don't send you DVRAB that you've not asked for! It's not like some "book of the month" clubs. If you don't fancy it, don't put it on the list.