I think it's your USB connection. My camera is compatible with USB 2.0, and I have an old USB 1.1 hub, which is what I used to download images from both the camera, and also separately using a card reader. They both took the same amount of time - slow - about 30 minutes to download a gig worth. Obviously I like the card reader better since it saves camera battery life ;-) and they're pretty cheap at Best Buy. Good luck!