Doug, I also have some old Kodachromes with spots like you describe. The slides have been kept in a controlled atmosphere since the dinosaurs roamed the earth last. Actually some of the slides date back to the early 50's and my father shot them with his trusty IIIf and later, M3. I just copy them on my coolpix 995 or 5000 slide copying attachment and touch them up in photoshop. Art Tafil