re: I'm ready to step up my home theater audio system.....

Haven't downloaded but have my whole movie collection streamed through Vudu service. Every movie available in 4k is in 4k. It's the way to go. No matter where you go, your movies are with you. You can add your movies from your computer at home or take them to Walmart and they will do it for you. I think the charge is 2 dollars per movie to add it to your account. The service itself is free.