From JVC:

NEW YORK, June 14, 2005 – JVC today announced a new series of camcorders that eliminates the need to carry tapes, discs or any media at all, yet can record up to seven hours of DVD movie-quality video. They also record more than 10.5 hours at a quality level comparable to a DVD camcorder’s 30-minute mode. The new JVC Everio G Series camcorders record to a built-in hard disk drive and will be available in 20 and 30 gigabyte (GB) versions, offering unprecedented camcorder storage capacity.

Full press release:
http://www.jvc.com/press/index.jsp?item=461&pageID=1