marekjoz said:
I've read somewhere, that the most often reason for damaging computer memory modules was cosmic radiation.
I once received a box of Kodak BioMax MS (ultrasensitive autoradiography film), a sealed package of 100 sheets, and after developing the first one (following a 5 day exposure to a radioactive sample), I noticed a ~6mm diameter black spot on the film that didn't come from my sample, and could not be attributed to a light leak in the film cassette. I pulled a few more sheets from the pack and developed them immediately, they had the same spot - stacking the whole pack together after developing showed that the spots formed a complete column passing through the stack at a slight angle, and I suspect the pack was hit by a cosmic ray during shipping.
RE the green RAW wedding photo, I suggest you contact all the guests and a random sample of individuals nearby the locale but not present at the event. Check your watch, the watches of the guests, and the watches of the people not actually at the event. I suspect you'll find a small temporal difference between those there and those not there, indicating that the entire wedding party and all the guests, and you, were abducted by aliens. Your shot was taken just as the matter transmitter beam was collecting you all for transport, and while the aliens eliminated most other traces of their presence, they missed your 5DIII. I would not report this to Canon, but to the National Enquirer, instead.