I have a book called Paul Matt Scale Airplane Drawings Volume 1. The book contains about 100 exquisitely detailed aircraft drawings that I'd like to scan and burn onto a DVD. What I'm wondering is what is the optimal DPI to scan at. I can do anything from 75 up to 1200. More is better, but 1200 seems overkill. I'm kind of settled on 600, but I'm wondering if there is a best practice, or recommended value before I get started. Thanks James Edit - Also, is there a recomended graphics format that I should save in? I was going to save as png, but I'm not sure if there might be a reason to save, for instance, as TIFF as I've seen on some of the Russian sites.