I am trying to convert an mov video to mp4 for use in serving up video via html5 in IE9.
-- I exported it to ogv and webm. These formats work as expected in various browsers (Firefox/Chrome)
-- I exported the same video to mp4 using Handbrake and Miro Video Converter (tried both). The resulting mp4 plays fine using windows media player, but it does NOT play in Chrome or IE9 when I use (a) html5 or (b) if I just drag and drop the mp4 video into these browsers). For testing purposes I downloaded an mp4 video from the internet and it plays just fine in chrome and ie9 using both of these methods (a and b).
What am I doing incorrectly? THANK YOU!