Mombo, if you're scanning a print or a post card, you can get away with scanning at lower digital res than I do with a slide. Keep in mind my slide is only about 1 1/4 inches wide, which would only be about 100 pixels if I scanned it at 72 dpi. On the computer, the posted photo done that way would be, well slide-sized! Consequently, I scan at higher digital res so that I've got a file that would be about 500-600 pixels wide when I post it. If your post card is 6" wide to start and you scan at 72 dpi then you've got a 432 pixel wide image to work with. That's the difference. Hope that helps some.

Gary