Instruct: Classify Amazon reviews into positive or negative sentiment
Query: DVDs have only ONE extra in all.

I'll make this very simple. I love the movies but the DVDs (as apposed to Blu-Ray) have exactly one extra - The Journey Of Bruce Wayne featurette. That's it. There is NOTHING beyond that on any disc: no director's commentary, no behind the scenes, nothing. How can there not be any commentary?!?! It doesn't even take up any space! The real drag is that as far as I can tell there is no place to get any of the myriad extras except by getting the Blu-Ray discs. That sucks.It also comes with a booklet with is selections of pictures from the book The Art and Making of The Dark Knight Trilogy... Meh.