I have been doing more research and found this.......... "My longest was about 180 hours for a 1000x800 (ish) pixel sort of image. Was playing around with trying to get smooth soft shadows out of vue in an interior scene and got a little carried away with AA."

My question why would they want to produce an image that small and spend so long doing so or am I getting the wrong end of the stick and they are talking of a 800 ppi print resolution or something?

The animations I create are 1000 x 800, detailed as hell take prob an hour and half to render a frame, however if I wanted to display as a picture I would make it way bigger especially with 180 hours to waste!