Just noticed something. It seems that soms rentals have a bad sound mix, not quality wise but channel wise. I use a logitech Z5500 with the Pro Logic Movie Enabled. I notice while watching most of the trailers the sound is beautifully mixed between all channels, but with some films the sound only comes from the center speaker. Most of these films are the oldies, so it's excusable. However, I rented Balls of Fury (SD) tonight and noticed it also had this problem. This is a very recent movie, how could the sound mix be this bad... 99% of the movies and all the podcasts work great with dolby prologic except Balls of Fury.... Just watch the trailer of Balls of Fury on your 5.1 set and you'll notice the difference. I expect a decent sound mix when I rent a movie from 2007.