Thanks for the explaination Richard, I thought that might be a big reason why some scenes don't look as good as others.
You're right about the 70's and how movies were changing their tone. Don't get me wrong, I still love the classics, but they sometimes tend to be a little too stereo typed and even the dialog can cause an unintended chuckle when viewed now.
Death Wish is another movie I liked, and felt the sequels became more like a parody of the original. Might have been an interesting movie concept to have Harry go after Kersey(Wrong cities I know... but Kersey did move around a lot and could have landed in San Francisco). It could have been 'Heat' long before 'Heat'
If written and filmed right, it could have been something both actors could have sunk their teeth in!
Anyway, I don't buy many movies on Bluray, especially since the format war is over and I've seen prices go up a bit. Even with some transfer issues, this is still a worthwhile addition to anyone's Bluray collection.