New submitter Paul J Heald writes "The vast majority of books and songs from the 20th Century are out-of-print. New data show music publishers doing an admirable job of digitizing older content, but book publishers fail miserably at putting old works in eBook form. I've done some research in an attempt to explain why: 'Music publishers can proceed with the digitization of their back catalog without competing to re-sign authors or hiring lawyers to renegotiate and write new contracts. Research has revealed no cases holding that music publishers must renegotiate in order to digitize their vinyl back catalogs. The situation for book publishers is substantially the opposite. In the landmark case of Random House v. Rosetta Books, the Second Circuit held that Random House had to renegotiate deals with its authors in order to publish their hard copy books in eBook format. ... Another advantage that the music industry may have is the lower cost of digitization. A vinyl album or audio master tape can be converted directly to a consumable digital form and be made available almost immediately. A book, on the other hand, can be scanned quite easily, but in order to be marketed as a professional-looking eBook (as opposed to a low quality, camera-like image of the original book), the scanned text needs to be manipulated with word processing software to reset the fonts and improve the appearance of the text.'"