MPEG4 (Divx, Xvid) format
MP3 audio
Video resolution: 480x360 or higher
Frame Rate: 24fps (frames per second) or higher
or
Quicktime (MOV) file at 640x480 pixels.
help.youtube.com/group/youtube-howto/browse_thread/thread/6b8aa490e6254230
(, Sat 15 Nov 2008, 14:39, Reply)
I am re-exporting it now. I had the size@50% of that recommendation and the type as "animation"
(, Sat 15 Nov 2008, 15:03, Reply)