I had moved my Calibre database to an external hard drive to copy it to another laptop.
This is an older 500 gig HD but I had no previous problems with it.
I did the copy to the other computer with no problems AFAIK and then continued on adding books and editing metadata
Yesterday I started to get read errors on external HD.
I copied files from HD to laptop HD with no errors but many books are corrupted.
Any suggestions as to how to find out how many are corrupted?
I tried save to disk but it just saves them corrupted or not
I am not in dire straights as I hopefully have a fairly recent backup but don't really want to redo editing etc. if avaoidable.
Thanks for any input good news or bad.