Sony PRS-650RC - Manual (Page 24)

Step 4: Transferring your eBooks to your Reader
24
3
Close Reader Library and disconnect Reader
from the computer.
Once Reader Library has closed, the on-screen
message on your Reader device will change from [Do
not disconnect] to [USB connected].
Once you see [USB connected], it is safe to disconnect
your Reader from your computer.
For more details about your Reader, refer to the User
Guide found on your Reader.