I realized I need to clear out all the duplicate originals from iphoto. I did not realize double clicking to open in photo elements creates an original even if I don't change it! Even if I do I save what I want so don't need a duplicate. No wonder I was wondering about file space! I have everything in tiff files! I have several libraries and manage them through iphoto buddy (a life saver) Has anyone used iphoto diet with iphoto 4 and had any problems? I am finally getting the knack of managing all my files and don't want to screw it up. Thanks in advance.