HP iPod User Manual page 24

To eject iPod:
Select iPod in the iTunes Source list and click the Eject button.
Eject button
You can eject iPod by clicking the Safely Remove Hardware icon in the Windows
system tray and selecting your iPod.
To disconnect iPod:
If iPod is connected to an iPod cable, squeeze both sides of the Dock connector
to disconnect the cable from iPod.
If iPod is in the Dock, simply remove it.
Important: Don't disconnect iPod if you see the "Do not disconnect" message.
You could damage files on iPod. If you see this message, you must eject iPod
before disconnecting it.
20 Using iPod