I have a JVC GR-DV72u camcorder that works well on USB. Recently I purchased a firewire card with 6 to 4 pins DV cable. I can command the camcorder with the software (play, rewind, forward, stop) but I have neither image nor sound on screen. I tried the plug-unplug trick of DV cable but nothing happened. I tried another firewire card but the same result. Only one day when I plugged the DV cable I was able to see the image on the screen and have sound but after I turned the camcorder off and started again I lost the image and of course the sound. This makes me think that the problem is the camcorder. Am I right? Thank you, George

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