Ok, something like 580,000,000,000 years then, if you keep adding one book per second.
The sun is expected to expand to beyond the earth's orbit in about 7,000,000,000 years, so calibre should be okay. No worries. :X
If you wish to lower the numbers used I suspect that you could just create a new library and copy all the books over there. (Using the GUI!) Then I assume that numbers from 1 and up will be used in consecutive order.
Last edited by Adoby; 03-23-2013 at 05:41 AM.
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