3Dguy layed it out pretty well. Basically, the dpi is not a measure of quality, just the amount of pixels a image fits into an inch. The more pixels per inch, the higher the print quality. 96dpi is standard PC screen resolution. A 4 megapixel image can be any dpi, but the print size will decrease as the dots (or pixels) per inch gets larger. An 8 MP camera will capture more data than a 3 or 4 MP one. Thus you can blow your images up larger, get finer detail, and print out larger quality images. The dpi is just a setting...not a final factor in quality. You can change the dpi within an image and it will still be a 4MP image, just either printing at a smaller or larger size. I hope that helps! --Kort

Kort Kramer - Kramer Kreations