Mentioned a while ago in a couple of threads, a lot of people think that you need to use the maximum settings the Droid is capable of to get great-looking video. The trailers above are all done using the maximum settings, however, to show that you can get away with a lower quality setting (and thus more movies on your Droid) I converted the Hubble 3D trailer (1080 source) using the 3 different quality settings DVD Catalyst 3 has for the Droid.
The files are streaming-capable, so you can just visit the links on your Droid to view them.
Default profile, 800kbps video 128kbps audio, 400MB per hour of video
http://www.tools4movies.com/Droid/Default/imax_hubble_3d.mp4
HQ profile, 1000kbps video 160kbps audio, 500MB per hour of video
http://www.tools4movies.com/Droid/Default/imax_hubble_3d_HQ.mp4
HQ2 profile, 1500kbps video 160kbps audio, 700MB per hour of video
http://www.tools4movies.com/Droid/Default/imax_hubble_3d_HQ2.mp4
See if you can tell the difference