Today I encountered a new scanner which from its description and watching a "You tube" video would make an excellent tool to convert paper books to electronic files.
At $700, it is a serious purchase, but I think it would save a great deal of time (labor) to scan a book. Also there is no need to break the book down to do the scanning.
http://www.youtube.com/watch?v=wJ4exzkxXzg
Worth a look in my opinion.
Ralph