I really liked the sound on Transformers, but I don't know that it's worth buying again. I think the only way I'd buy it again is if I really liked the movie and I was getting rid of the HD DVD version. Batman Begins I bought on Blu-ray after already having given the HD DVD away, but I'm still second-guessing that choice. I definitely want to own The Dark Knight, so I figured I may as well own the previous installment, but subsequent viewings of Batman Begins don't really do a lot for me, and from an audio standpoint, I can't even really remember any scenes that stood out for me.
