Polaroid PMP350-4 - Manual (Page 9)

Disconnecting the USB cable
After completing the file transfer, please disconnect the USB cable the following way:
1. Double click the green arrow “Safely Remove Hardware” in the task bar on the bottom right of the window.
2. Select “USB Device” and click “Stop”.
3. When the “Stop a Hardware device” appears, click “OK” to disconnect the USB mass storage device, and unplug the player safely.