I just bought a new iMac last week and got a Belkin FireWire 800/400 9 pin to 4 pin Cable. My sony Handycam DCR-TRV33 has a 4 pin port, so this connection should work, but when I connect the camera and put it into vcr mode, nothing happens on the computer. It doesn't seem to recognize the camera. I'm really hoping to use iMovie to edit some videos for a project I have to do for school. I looked at the list of compatible cameras for iMovie 2011 and mine wasn't listed there, but I am really hoping to not have to buy a new camera if I don't need to. Does anyone have any advice on how to get my video onto the iMac? Thank you so much for your help.