QUOTE(benwaggoner @ Apr 11 2008, 19:28) 
Correct. with 2-pass CBR, you're able to essentially request a bigger bit reservoir in advance of complex audio, to keep worst-case QP lower.
That's very interesting indeed. QP lower qp higher. Very interesting.
You are guys very "intelligent" here to say what settings to use to improve VC1/WMV and WMA quality on audio/video compression forums but ... can you provide any sample that shows 2pass supeority for wma10 CBR?
Or you're doing it because of extremely high popularity of your codecs, aren't you? http://www.hydrogenaudio.org/forums/index....mp;#entry555587
People at least have eyes and ears to choose better codecs like AVC instead of VC1 and AAC or Vorbis instead of wma. Doesn't matter how much money guys spend on marketing.