I have a blueray burner on my laptop and desktop. my laptop runs dual screens and my desktop runs 5-10 monitors depending on the day. I use HDMI on my laptop along with the built in monitor and HDMI/DVI on my desktop. I have never ran into any DRM issue with bluerays. The only movies i have watched are tears of the sun, startrek 2009, 13 blocks, repo genetic opera and thats it. all my bluerays. but all of them work on both systems. i use VLC or power dvd to play them.
desktop has 5870's and laptop has a 9600