OK, so I'm a little confused over the whole "target bitrate" thing. What EXACTLY does this mean? There's the quality of the codec compression (min and max quality settings) and the frame size (ie: 320x200, 640x480, etc), but what does target bitrate control? Bumping it up from 3300 to 4400 added some quality and takes up more drive space but what does the variable relate to? Jer