I've tried it on 3 different systems, laptops, and desktops. I hook up the firewire to the deck, sometimes the system sees the deck, sometimes it doesn't. I currently have it working consistently, hooked up to an old Imac. I've upgraded the br50 firmware to the latest and tried different cables. Sometimes, I was able to fix it by switching to dvcam, and then back to hdv. Sometimes, I was able to fix it by disabling the firewire drivers and reinstalling them. I can't explain it but it's currently working on one computer so I'll try to keep using it there.