I noticed the Canon drebel rotats the images when you take a portrait, but for some stupipd reason it shows it rotated on the lcd while the camera is still sideways so its sideways after you take it. I think theres a gyrothing inside it to tell it its sideways.
But there is alaso software around that analyzes pictures, so that could be part of it to. Some scanners are tryiing to stop people from scanning porn, but it cant tell the difference when its a picture of 2 sumo wrestlers. Probably to much info. :0) Theres some weird news stories online.