I did some research on current camcorder technology when I recently opted to purchase a miniDV model.
DVD Camcorders havent yet convinced me...Ok the disk format is nice, and they have a kind of cool factor, but there is one serious drawback....quality....If you look into the various quality settings of the models available, you will see that even the highest quality mode on the best model available, is still advertised as "near dv quality" in that mode. The combined issue there is that to get that kind of quality, you are looking at something like a recording time of only 20 minutes on a disk.
The bottom line here, is the word "near", which effectivley means "lower than", and for me, thats just not good enough for something touted as new technology. If the quality is not up to MiniDV standard on its highest mode, then I dread to think what lower quality (longer recording time) recordings are like.
DVD Camcorders dont offer anything like a smaller physical size of camera, so, coupled with offering less recording time, and having a lower image quality, I don't see any real reason to purchase one, given you could get a really good miniDV model for the price of the lowest of the DVD range.
Hang on for them to improve microharddrive camcorders I say.