Sony S-Frame DPF-V900 Operating Instructions Manual page 42

The Memory Stick is protected.
Media format not supported.
Cannot open the image.
No more USB hubs can be
connected.
Incompatible USB device. Check
device's USB settings.
42
GB
• A protected "Memory Stick" is inserted. To edit and save
the images, use an external device to remove protection.
• Connect the device directly to the photo frame, or use a
device without a built-in USB hub.
• Connect the device with support for mass storage. If USB
setting of your device is incorrect, set the mass storage
mode in USB setting.