Hi,
When "Adding" a book title from my "device" to Calibre "Library", most of the time it works well, I get a tick displayed against the book in my device, and it appears ok in the library list.
However with a few books, although I get a window saying that it is adding the book to the library I don't get a tick against it in device, and when I check the library book list it isn't there.
I do however have about the same number of book titles in the library that have 6 (random?) characters each ?
When I try to "View" one of these I get an error message says "File is not a Zip file" ?
Are these the ePub ebooks I have added ?....