Summary: The camera is great. However, I wanted to use it for making how-to videos, and my recordings are made in a quiet environment. Upon playing back the first few test recordings, I kept hearing this noise, and I wondered if there was something in the room making it . . . like a computer fan or maybe the printer. But no, it's the fan in the camera itself.
Summary: I got to tell you that if you are looking for the best camcorder ever created by Panasonic this is the one! The low light is the best on the market, sound quality insuperable, very portable, and easy to use. The only criticism I have is with the included software because it's too basic for editing & only helpful for transferring data to your PC, this is why I'm giving only 4 stars to it.