I hated getting video to work. Often it was very cryptic or long drawn out cli methodologies to accomplish what is a simple task.

i have full movies and tv eps playing on both the crappy internal player and the less crappy but still crappy mPlayer.

using a windows box:
- get gspot(it's free) http://www.headbands.com/gspot/
- transfer from your 770 the video "Discovery.avi"
- put vid in gspot
- then get Super (it's free) http://www.erightsoft.com/SUPER.html
- drop any video you want into super, and match as close as possible the setting you see on gspot.
- encode. upload to 770 and enjoy

I tried the nokia media converter, it's crap and video either looked horrid or went out of sync after 30 mins. That is if it even played at all "video not supported" was a common error on the crappy video player.

so to review,
Discovery.avi = known video that works
Gspot = find out what settings Discovery.avi uses
Super = free video converter
2gig card = full of crap to watch

yes folks, it's that easy.