The Frame Deleted the Photos in my SD Card
About this aspect:
We have had a small amount of incidents where a customer has had an SD Card or USB Drive inserted into the Digital Photo Frame and at some point, the contents of the Card were deleted without any sign or warning.
They were left on continuously for 5 days. We just could not discover a link between the frame and the deletion of content from an SD Card.
Therefore, the most likely scenario is a Virus on your Cards. According to our engineers, if the virus exists inside the SD card, and also the photos, when the frame runs the SD card, the virus could delete photos in the SD card. The frame can't be infected by the virus.
Bear in mind, the same thing could happen when inserted into your computer. In this case, it happened to be in the Digital Photo Frame.
The only proposal is to re-format the SD card and try again.
NOTE: ALWAYS KEEP A BACK-UP OF YOUR PHOTOS.