Ross, The result you got in your point number two (Save as...) is correct. Again, it is just making a copy of the image with the recipe information attached but not performed on the image. To your third point, Convert and save, when I make changes to...
Ross, When you make changes to either a RAW or JPEG file in DPP, the software is storing what Canon calls a "recipe" for those changes in the image. It is never changing the original image pixels but rather applying the recipe steps you've created. S...