Quote:
Originally Posted by cybmole
I considered the "put all books on tablet" option but could not see how to then keep the tablet library in sync with my main PC calibre library; because If I change any covers, metadata , tags etc I do all that via the PC. so I figured just have what I am actually reading on the tablet, & let the library live only on PC, with it's regular backup to a drop box folder ( using freefile sync to one-way sync my calibre library into my local dropbox folder
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Although you have already solved your problem ...
What you describe as a problem is precisely what CC does best, maintaining consistency of metadata. When you connect as a wireless device, CC and calibre cooperate to update the metadata in CC's database.
You might want to think about how metadata is maintained in calibre and, in particular, when it is updated in books. Changing metadata in calibre does not update anything in a book unless you do something special (polish, reconvert, etc). Because of this, a downloaded book will very often not have the latest metadata, so the reader/library organizer app won't have it either. The same thing is true of covers. If you change the cover in calibre, that cover is not automatically put into the books.
Because CC uses calibre's metadata and covers instead of what is in the book it does not suffer from this limitation. What you see in CC is what was in calibre as of the last wireless device connection. No matter how many books you have on your device (within reason, for example many thousands), you can be confident that all your changes in calibre will be automatically sent to CC when you connect.
If in addition to metadata you also change/edit books then you can use the reading list plugin to auto-sync the books to your device. Also, we are considering adding book auto-sync to CC. Both mechanisms have the advantage that they use calibre's device subsystem to send the books, which tries to update metadata in the book.