The forums are full of issues regarding HDV capture on the latest fcp/OS 10.6.4 systems. The majority are from people who have been capturing on older systems with no problems. I’m have the same trouble with a Sony Z1E. The consensus seems to be falling towards firewire 800 to 40(9pin>4pin)issues. We’re still waiting to hear if anyone gets anything useful from either Mac or, in my case, Sony, about patches or firmware upgrades.