Yea that stupid alternating hissing sound is really annoying. I've been trying to figure out why it's doing that, and keep coming up with nothing. It's not on the camera cuz it plays perfectly fine on the tape. It's only on the computer that it comes out like that. I remember doing a few videos before using my roomates computer and the sound was fine on those. But I try it on both my desktop PC and the laptop and the sound comes out that way on both. I'm thinking it might have something to do with the USB transfer... I've really gotta get a firewire port and cable and transfer them that way, cuz the USB sucks!! I'll figure it out one of these days, lol