I am looking at digital cameras for home use and I see that I can buy one with the ability to shoot video 480x640 with sound and zoom. So now I am wondering why I lug my Sony TRV-480 around. Why not just buy a Sony H-7 say and leave the cam corder at home? Is the resolution on the video camera any better than the quality I am going to get out of the digital camera in video mode? Thanks!