There would be no need to use any sort of special program since the only files you will be copying off are physical files i.e. photos, videos, music etc. The only time would be necessary to create a full image of a card would be if you wanted to save the information such as boot records and changes to the structure of the card, not just the physical files. But I would always just recreate the card later if I had burnt an .img to it or made it bootable etc.
Copy paste would do just fine in this instance, but if you are copying a large quantity of files, I would recommend looking into the free version of TeraCopy.