[Mex5150]

Hi Guys,

This has been happening on and off for years, but I've reached my frustration level with it.

Calibre frequently loses books, while retaining the meta data. It doesn't happen with every book, but it does happen enough to be annoying. Here's a recent example: I'm updating and converting a lot of books at the moment, this is something that just happened
1) Open the pdf to see if it's suitable for conversion to ePub (ie consists of actual text rather than just pictures of text).
2) Update meta data to get the cover I want etc
3) hit convert book
The problem is, on 3 I'm told the book format doesn't exist, even though I just looked at it seconds ago.

Library Maintenance -> Restore Database takes ages to do nothing.
Library Maintenance -> Check Library tells me there are missing books (which is why I went there in the first place).
If I go and search the HDD I can often (but not always) find the missing book(s), sometimes in a case mismatch, sometimes elsewhere, which means I've got to move them elsewhere then re-import.

The library is not on a network drive (I know this can cause problems).
Although I do on occasion access the files directly from the drive, this is not the problem here (as it also happens to newly imported books that have never been accessed directly).

Any ideas on why this keeps happening, and more importantly how to stop it from happening in the future?

~Mex