I like old manuals but i don't really like searching for the correct one, and having to deal with 25k manuals in various sizes. Someone should look into http:/

I like old manuals but i don't really like searching for the correct one, and having to deal with 25k manuals in various sizes. Someone should look into http://store.diybookscanner.org http://store.diybookscanner.org and just scanning them all, then processing them with a pdf->text software. and just have them searchable so that they can be used in the future if they need to be... Whats the time limit for archiving these types of documents in terms of copyrights?