I put this video together a long time ago- it started, in fact, as a Powerpoint demonstration back when I was with EP Levine, in Boston.
Wait... it actually started when I simply was trying to get my head around exactly how a multi-shot works, now that I'm thinking about it. I used the Powerpoint to bypass having to figure out the math!
Anyway, have a look... if you're interested in the whys and wherefores of multishot capture, it may help out. http://www.parrotcolor.com/store/blog/?p=314
If you're really interested in understanding exactly how much better a multishot capture is than a single shot, even from the same sensor, I'd say there's simply nothing like a side-by side comparison to show it. I may, pretty soon, be able to post that... check for an update.