Here is an article on how

Here is an article on how to get a greenscreen background to display in real-time while recording. SeriousMagic.com and TigerDirect.com were the ones suggested.

http://www.dvinfo.net/conf/non-linear-editing-pc/6217-real-time-green-screen-compositing.html

To get a live DVDrecording from your camcorder, I would recommend getting a real-time “DVD Recorder” that connects to a TV – similar to a VHS recorder, only that it’s digital on a DVD.