My son that does some video work uses another device (Xoom?) to capture the audio and then mixes it back in post production.
Bob
I am trying to use my Camcorder to make a music video. It works ok with the built-in mic, but in my application, I'm plugging in a 4 channel mixer to the external mic input. The problem Is that I have lots of noise in the audio part of video. I have turned off the mic, instrument, and backing track inputs to the mixer. The noise dies only when the main mix out control is turned down. On my previous Kodak Zi8 video recorder this was not a problem.

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic