Hi all. Yes this is an old subject which is revisited every year or so, but until this and other useful tips for scanning/validating are recorded in one easy-to-locate place, and in a concise manner that gives the facts without all the side bar discussion, we will continue to revisit it. New volunteers have no way of knowing this and many of us old volunteers will forget if we let time lapse between scans. So please, let's not confuse our frustration for not having a systematic approach to tips for volunteers with helping those of us who occasionally need help learning or relearning the ropes. Donna