Add 1K books at a time, or even less.
It is very likely that there are books that are damaged and so may cause the import to fail, and possibly hang calibre. You will have to try to figure out exactly what books are bad. And remove them and try again.
Also I believe that the process makes very heavy use of the temp folder. Make sure you have plenty of space on the drive that contains the temp folder.
The process is also very hard work for the computer. Verify that the harddrives are error free before you start and that there are no problems with the computer overheating.
Last edited by Adoby; 11-13-2013 at 12:14 PM.
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