[chaley]

Thank you both for your comments.

Originally Posted by banjomike

I don't see how you can have an option which allows users to maintain their own collections and still have Calibre put collections back when it notices thay have gone. #2 seems to be the closest to what you described in post 1.

The thought was that by putting something in the collections box, the user was asking calibre to ensure that the collections honored those metadata attributes. Seemed right at the time.

Having said that, I will probably stick to letting Calibre maintain my collections.

and

Originally Posted by dwanthny

Seems reasonable to me, but I've unchecked Preserve device collections.

It is probably worth clarifying the effect of the proposed change if the option is cleared. The safest implementation (and I want to be safe at this point) will be for calibre to process collections at the same point (sending a book) regardless of how the option is set, but with different effect. If the option is cleared, when a book is sent, calibre will add any collections necessary, *and* (this is the effect of clearing the option) delete any collections no longer indicated by the metadata for that book. Collections will not be rebuilt at any other time.