Reading some of the posts here, I see many people saying that they edit their pics in Tif format, and they don't mention PSD. Why is that? Is TIF a better format than PSD when editing in Photoshop? I like that Tif files get a preview in Explorer, but it just seems to make sense that Photoshops own format would be the nest, lossless format to use when editing. Observations or comments?

