I am on FCP 6.0 and was on leopard
I had problem with log and capture in HDV from the Sony Z1u with Sony HDV firewire.
I upgraded to snow leopard in order to run the new CSS5 but when try log and capture from usual camera in FCP. 6.0, nothing happens, there is no communication with the device at all.
I tried log and capture in Imovie and Abobe Premiere and it works fine…