Unable to access external media.
Use the external media device in stable condition (the environment such as no vibration
and room temperature, etc.).
Make sure that the power source of the external media device is connected.
Others
Maximum number of images already selected.
You can select only 100 images at one time for:
Deleting movies/photos
Protecting movies/photos, or releasing the protection
Copying movies/photos
Data protected.
You tried to delete protected data. Release the protection of the data.