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As a former librarian here is another part of this issue to consider apart from the technical issues – half lives of information. Books are written, read and cited, read by others who are following up citations, and then either (rarely) become a long term standard work or (commonly) become a work that had relevance for a somewhat limited period but over time becomes less cited and less read. In STEM subjects this period of relevance – the half life where half of all reading and citation of the book occurs – is very short, in the humanities it may be over a decade with a long tail off period. After a few decades the book is either weeded from collections or relegated to off site closed access storage. If later the information in the book becomes relevant again it can usually be located in a few libraries. Digitizing
As a former librarian here is another part of this issue to consider apart from the technical issues – half lives of information. Books are written, read and cited, read by others who are following up citations, and then either (rarely) become a long term standard work or (commonly) become a work that had relevance for a somewhat limited period but over time becomes less cited and less read. In STEM subjects this period of relevance – the half life where half of all reading and citation of the book occurs – is very short, in the humanities it may be over a decade with a long tail off period. After a few decades the book is either weeded from collections or relegated to off site closed access storage. If later the information in the book becomes relevant again it can usually be located in a few libraries. Digitizing
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