How i use webcam mode with jvc gz-mg330ras - JVC GZ-MG330 HDD Camcorder

You can download the manual from the manufacturer's web site at
http://books.jvc.com/booklist.asp?Model=GZ-MG130US

my JVC Everio GZ-MG330 keeps saying "recording failure" when i press record. how do i fix this?

This will not work as webcam, since when you connect it to USB, it will be detected as external drive. No hardware inside that can support webcam function. Sorry

May you will need to relace the optical block assy or ccd base assy

load the usb driver, connect to usb port, power on in record mode and set your webcam app to use it.

well, to convert the file from your JVC, u have to use a tool to do this. here i recommend u Pavtube HD Converter which can convert mod, tod, mts, m2ts to many other regular format u want. and if u wanna a web cam, u have to find a specific one for web camming.

I fed the analogue output of the camcorder into a little VideoExpress box and thence to the USB input. Then I downloaded the free software Splitcam, and I now get the camcorder's output showing in the Skype screen. The next step is to find another Skype user to try it out with!

There is a PDF at this website that should walk you through on how to get everything to work correctly for the software.

http://resources.jvc.com/Resources/00/00/91/LYT1600-001A.pdf

There is a program i heard of halled trackercam but for somereason it doesnt work with my jvc, im not sure why.

Video streaming is possible with DV camcorders thanks to the Firewire port (IEEE1394), which works very much like a digital video in/out connection. Basically, the camera just sends video, and if there's a computer attached, it receives the video and decides what to do with it on a computer.

USB doesn't work that way, normally. Most tapeless camcorders automatically set up the webcam as a storage device, which is a very distinct thing from a video streaming device.  A storage device is just a disc of some kind... it will show up under some letter (eg, K:) in Windows, when you attach the camcorder.  

Some USB camcorders allow for a "webcam" or "streaming" mode... I didn't find any specifics on your JVC, but I know some of the Panasonics support this. There are two ways. One is that, if you have the camera in record/standby mode, it may just go automatically into webcam mode when you attach USB.

The other way is that the camera will have something in the menus, like "Live mode" or "Webcam mode" that instructs it to configure USB for video streaming rather than storage-class attachement.

And of course, some of the tapeless camcorders have a Firewire port, just like a DV camcorder, which is there specifically to allow for streaming video, etc. You could use your camcorder as a web camera over Firewire, given the proper software... though you might find that's just as expensive as buying
a webcam.

And given the price of actual webcams, I would consider buying one
rather than adding wear and tear to my camcorders, just based on 
price. This is the same  reason I have a DV tape rewind device.. $20 device, $2000
camcorder... easy math.