The DVD recorder is even bigger than a camcorder, and he already thought that was too "bulky"... so I don't think he'll be happy to carry 2 devices with him either.
In short, no. Get yourself a Canon MV960, or a HV10.
I'm actually about to order a HV10, it's REAL tiny.
The HV10 measures 56mm x 104mm x 106mm and weighs in at 440g (15.5 oz.)
You can even directly plug a 2s lipo in the DC jack if battery life is a problem