Originally Posted by davlewis
use only one or the other of the applications.
You'll be OK if you only use one or the other each time the device is connected, i.e. if you've used the Sony s/w, eject the device (and stop the Sony s/w if you've set it to auto-sync) then reconnect it if you want to use Calibre.
> If Calibre can import the Sony ebooks it is not obvious how to do it.
Just import them into Calibre from where they're stored on the PC (My Documents/...)