Cobweb X264 ((install)) -

Set between 18 and 23 for a balance of quality and size. 18: Visually transparent (high quality). 23: Default setting; good for general use. Preset: Use the slowest preset you can tolerate. Medium: The default and safest starting point.

It provides high video quality at lower bitrates compared to older standards like MPEG-2. cobweb x264