I just recently purchased a new Sony Z5u, and a firewire cable to capture my video to final cut. When I preview and log clips. the picture is very clear, yet when it is captured the video becomes very grainy. I have checked and double checked all my settings and everything is in order. The footage is 1080i 24p. Also the only way Final cut lets me capture is to use the "Capture Now" option. It allows me to log clips, but when I batch capture the screen is just black and does nothing. Any help will be very appreciated.