Even those turn into iTunes DRM locked files for me, as I'm not even going near the alternate version that uses Windows Media. Basically I still buy movies I like on DVD or BluRay, then rip them to my NAS. If I want to play them back at home, I just play the raw files via DVD Player or Front Row. If I'm going on a trip, I use Handbrake to transcode them to standard h.264 files that the iPad will play. The Mac Pro lets me transcode a full movie in usually 20 minutes, so in the time it takes me to pack, I have a few movies ready too.

I'm just not convinced any of the current DRM locked video solutions will provide me the flexibility I want for the next 10 years. Looking back 10 years, I had a growing DVD collection (all still playable today), and was a mildly annoyed Windows user. I can't predict how things will end up in 10 years down the road, but I have a higher confidence in my ability to play back DVDs then then I do in playing back DRM locked files in 2020.