I spent five hours on a bus today. During that time, I watched two movies, one on my Creative Zen Vision M 30 gig player, and one on my Nokia N810. Here are my impressions:
Creative Zen Vision M 30 gigabyte
I watched A River Runs Through It on the Creative device. I expected to have difficulty watching a movie on such a small screen, and was pleasantly surprised with the experience. The colors are clear and vibrant, and I had no difficulty keeping up with the action. I turned the brightness up to 100%, but probably could have been comfortable with less.
After I got home, I turned the movie back on and left the player running to see how far it would get before the battery died. Including the time on the bus, it played for just over 3 hours before switching off.