What is H.264 encoding?
 

Test script says I don't have it on my server and need it.

It's mp4.

Apple also has a good read on it.

I use this format embedded into a Flash player and also sometimes offer a direct link for folks wishing to use QuickTime instead of Flash.

It's also what YouTube uses now.

Thanks for the info Cleo |smooch|

H.264 is codec, and it can be in many containers like mp4, flv, f4v, mov, mkv ...
H.264 gives great compression, which means superior picture quality on the same filesize as other codecs (or smaller filesize when comparing same picture quality).

Professional!
If any question hit me up support@discountencoding.com

Here Nero decoder is still faster than ffdshow+haali and mplayer. Maybe it depends of settings. I also use hard settings (high profile, ref 8-16, weight, bframes 2-3, high values for mvrange for x264/H.264 etc.) And probably it depens of CPU. In my case SSE2.