I have leanred from you good people that I degrade a JPEG each time I open and save it, but with both PSE 7 and Light Roon 2.2 that I'm testing, when I bring one in, editor it and then save it under a new name, the original is still in my files, along with the new one I just created. Does this mean the original JPEG is simply being copied and has not been degraded?