Your problem sounds like a failing camcorder battery. Try this. Charge it up for a few hours and try to play an old DVD on it. Does it play fine for say 15 minutes?
I have a canon DC100 that will only record for a few seconds and then shut right down. I can't find anything in the manual about this and was wondering if anyone could help me with this. It worked fine for about 4-5 DVD's and that is it.