[revmike]

The books are all ePubs, no matter which book I attempt to add it replaces a different book. If I add the missing book, blue belle, it will remove one of the other books, its never the same book. I didn't know of the problem until I added the fifth book. I'm afraid to add a sixth book and then I'll have two books not showing in my library. Thanks for the suggestions, I'll take a look at all of them through calibre. All books were originally added with the Sony software.