I got an Hp photosmart 620 2.1 megapixle Digi camera and I find that the perfect size is like 1.1 meg, I just switch my selector to pixles and then press the down button until I see 1,100 kb on my selector at the bottom then when I save the file, I put the file quality 3 notches from high quality ( turns compression up a little, makes for a smaller file. Of course, I use Hp director but, a lot of cameras have simmilar software.