When I combine a Firewire camera as a video source and a none-firewire audio device (usb, internal) source the WME 9 preview screen becomes very choppy. The weird part is that this only happens when PUSH/PULL encoding is enabled. When doing a none live capture the preview screen is smooth. If I capture audio and video from the FW camera exclusively the choppiness disapears in live or local mode. You can check this yourself! BTW to encoded content is not choppy. I have verified this on a variety of systems (using XP SP2/3). If anyone knows a solution to this please let me now.
