OK I know you've answered this question before. I confess I get confused at times, and need to be reminded. I'm in the process of backing up my artwork to CD. The most practical way is to zip entire folders and save them. Will I lose image quality here? Perhaps I stand to lose the most image quality on jpgs, because they are a "lossy image type?!" I'm saving most of my images to PhotoShop PSD format before going anywhere else. Is the PhotoShop PSD file format safer when it comes to potential loss of image quality, after being zipped? I usually save pz3 files of important art work. That way I can always bring it back and render again. I'm totally amazed at how much room these images take up. I had one folder that was about 1GB. That's more than you can get on one CD. Your insights and tips are valuable as always. Ron