I fly with photo/video gear a lot and most of the time I am forced to check at least a portion of my equipment. I usually try to carry on my most fragile gear (cameras and lenses) but sometimes even that isn't possible. After watching this video I might have to throw a fit the next time they tell me that all of the over head bins are full.
The video above shows a very complex but relatively gentle baggage conveyor belt. I believe this video is meant to show the baggage system in a positive light but I still cringe when I imagine one of my gear bags being treated this way.
Of course this video leaves out how rough the human baggage handlers themselves can be. We actually had an airline break a piece of our Pelican case, something that I thought was actually impossible. Maybe our bag went through the machine below.