I got your name off of an earlier post, where someone was trying to get his 30000 to connect via firewire to his computer.
I have tried this process on both PCs that I own, each is running Windows XP Pro SP2. I plug in the firewire frrom the deck, and I first see "JVC Tape Deck" or something like that. I only get the device name to show for just a second before ANOTHER device shows up called "AV/C Tuner". Somehow the AV/C Tuner jumps ahead of the Tape Deck in the identification process, and of course, the driver for the Tuner doesn't install properly.
I saw that you had a link to webtc.com, and I clicked there with great anticipation, only to find that it was a broken link. I went to the main page for webtc, and there is a username/logon page with nothing else. Looks like a dead end.
I am just looking for the firewire driver for this 40000 unit, or some process to eliminate this crap AV/C tuner. I went through the JVC manual to see if I could disable the tuner. No dice.
Hopefully, you can lend your assistance. I have seen that others have had the 40000 working with their NLEs, so I know it is possible. I'm just missing something.