Hi, I'm new to photography, so pardon my inane questions. How is printing in a shop done? Do you bring your memory card, a dvd or a cd? If it's the latter two, do you have to change the ppi on ps? Do shops normally provide the service of copying files from your memory card to a dvd/cd? What are the normal charges per photo for photos of different sizes? Which shops are recommended? Sorry for these very noobish questions. Thanks!