Authorize Sony Reader to Store Account
If you are still having problems adding books to the collections on your Sony Reader, make sure your Reader is authorized with the Sony store account. If it is not authorized, you will not be able to add a book to to the Reader, or to a collection on the Sony Reader.
Connect the Sony Reader device to your computer via the USB cable. Connect one end of the cable into the port on the Sony Reader, and connect the other end into a free USB port on the front or back of your computer.
Click the Start button in the lower left corner of the screen, click All Programs, click Reader, and then click eBook Library. The eBook Library window opens on the screen.
Click eBook Store on the left under Library. Click Account on the top on the right side of the screen. Log in with your username and password, and then click the Login button.
Click Manage Devices in the Device Details section. Click Authorize this Device. A message will display on your screen that the device was authorized successfully. This process will only take a few seconds to complete.
If the device is already authorized, you will see it listed on the screen with a De-authorize button next to it.