Ok. I am miffed. I am downloading uTube videos on my PC and wanting them to play on the Nokia N900.

What is the definitive codec or resolution that I should be used to avoid the dreaded "cannot play media format" error?

I just want either a PC program or method to simply be able to port MP4 videos to the N900 without hassles. So far I think the issue comes down to video resolution size, as anything above 800 x 640 seems to be rejected. Is that true?

Is there a simple way of porting videos to the N900 without dread of coder hell? What should I be doing please?

UPDATE

It's all here baby!!

http://wiki.maemo.org/Video_encoding

Phew!