Joey's camera

Friends Season 5 Episode: Joey films in the hospital with camcorder

They tried to hide brand with tape on the camera body, but you can notice Sharp on the hand strap.

Camera interface and LCD

Now Ross holds it

Closest match found on the internet is Sharp Viewcam VL-E760.

This is actually second time when Joey filming with camera. First time was in famous episode with Ross's wedding in London. But Joey was using different camera! He must have been lost it on the way back to NY :)

Here are snapshots from London episodes.
It's definitely Sharp, but model I couldn't identify. It has zoom knob on top and different layout of controls.