If you're absolutely sure that your camcorder is supposed to be able to pass through from analog sources without recording to tape, then just ignore this - otherwise I guess this is your problem. I have the same problem - my Sony PC100E doesn't pass through analog signals to DV. That means as soon as you connect the Firewire cable, the analog in/out is automatically locked to output. The only way to capture analog video to DV is to record to DV tape first and then capture to HD. Not a good solution (it sucks, to be honest ;))