So, you have purchased a good digital camera or even a dSLR, and you are wondering how to deal with your memory cards, what sorts of images should be kept or deleted, and what kind of compression you should use when saving images to a memory card. The answer to the first question – how to deal with your memory cards – is: buy as many as you can afford. The reason for that is actually the answer to the second question – what images should be kept and which deleted? All images should be kept.