When I bought my digital camera, it only came with a certain amount of internal memory. So to get more memory for extra photos, the suggested that I buy a SD card. This was about 2 years ago and since then I've noticed that they are much cheaper than when I bought mine. If you buy one, you must make sure that you get the right micro sd cards for you type of camera. Check out this website and see which one will be right for yours.
