[O.K-ing]

Originally Posted by pdurrant

I'm nothing to do with calibre officially. Just another user.

If your father has an ebook reader, he may be able to recover some of his books from the device.

If the books were bought from Amazon, or other on-line book store that's still going, he should be able to re-download them. This may not be possible for books that were special offer freebies from places like Tor.com.

If the hard disk was quick erased instead of completely reformatted, if might be possible to use disk recovery software to retrieve some books from the 'empty' portions of the hard disk. This is complex and unlikely to be very successful.

Thanks for your held anyway.
Who is "official" member of Calibre? I'll try to ask in any case ...