I'm surprsed to hear that that Canopus unit will not capture stereo audio. The one I see online certainly has both a right (red) and left (white) channel.
But, if that's the case with your unit, I'd get an RCA splitter so that you can plug both of your camcorder's audio outputs into the single audio jack. Otherwise, you'll only get one channel of audio.
(S-Video is video only, so if you use that jack, you'll get no audio at all!)
The Canopus DOES have two audio jacks, red & white, it is the camcorder that only has one audio jack output. Soryy for the confusion
Oh. Well, in that case, I'd get a splitter RCA cable from Radio Shack so that your camcorder can output to both the left and right channel.
Ok, I'll do that.