When you compress video for on-demand streaming, you primarily care about three things; quality, quality and... let's see, oh yes, quality. If you're been encoding H.264 video with Apple Compressor ...
Fortunately, Compressor can access QuickTime plug-ins such as the x264Encoder plug-in that you can download at MyCometG3. Note that the developer of the site, Takashi Mochizuki, discontinued ...