Guido, You're still assuming that someone has access to all these books and can provide a better scan. If I had a choice between spending twenty hours fixing a scrambled scan or being given a copy of the book and asked to rescan it, of course I would rather scan. But usually the choice is fix up the book, or reject it and not have it at all. Of course I know that a volunteer in this position can mention the problem on list and someone might go find the book and rescan, and/or they can ask Rui to add the book to the list with hopefully the same outcome. As for me, I validate things I want to read. Self-interest to be sure, although not credit-based. I actually like reading a book and fixing the errors as I go along, and I take pride in the fact that when I upload the book it will be as close to perfect as I can make it. Of course, it's a real pleasure to have a scan that's so good I don't have to do much or any correcting. And if the submitter says that they've already read the book through I wouldn't necessarily read the whole thing before uploading. And my point is... hm, I thought I had one... Oh, never mind! Kellie