What operating System and version?
I downloaded http://resources.jvc.com/Resources/00/00/90/LYT1654-001B-EN.pdf
This camcorder is a miniDV tape based camcorder - the i.Link/IEEE1394/Firewire cable to transfer video from the camcorder to you computer was not included in the box. You need to buy that separately.
Refer to pages 8-9 for the location of the DV port to which the 4-pin Firewire cable needs to be connected.
The other side of the Firewire cable can be either 4-pin or 6-pin and will depend on what kind f Firewire port you have on your computer.
Refer to page 33 regarding connection to a computer. Note that the DV cable i.Link/IEEE1394/Firewire/DV is all the same thing) is "optional".
If you are using Windows XP, with SP2, MovieMaker was included. If you are using an Apple Macintosh computer running OSX, iMovie was probably included. Macintosh hardware has included Firewire400 ports for years. You may need to add a Firewire400 port if you are on a traditional Windows machine as they typically do not include a Firewire port (unless you specifically requested it to be included).
The video editing application will allow you to import the video and save to various formats...
I have a JVC GR-D750U. The manual does not specify the software. How do I create media clips (in avi/wmv/mpg format) from the video content? Can it even be done at all? Manual doesn't tell me that either.

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