I tried viewing h.264 videos through the browser on a site and it didn't work. How can I do this?
I would expect that you'd have to download that video to play in the Droid's media player.
Droid i know for sure is compatible with .mp4. I convert all my videos to .mp4 since it's such a universal format, plays on my Droid, Mp3 player, PS3, etc.
Get a converter and just convert it to .mp4.