WS Cheng: I converted my image into Jpep file in CS5 and posed the image for the contest, but I was advised that my image is not in a valid format. Would anyone can tell me the reason? Thanks.
"JPEG", you mean, right?Are you sure you didn't accidentally convert to "JPEG 2000" (.jpx or something, I believe)?
Samuel Cochrane: I apologise if this is an ultra silly question (dpreview) - Can i shoot on film & scan it?
They say you can shoot from a smartphone or a DSLR, use as much or as little editing as you want... guess rules ain't very strict, and I really think it's ok to do what you asked.