I cannot recall the origins of these videos because I can't play them back. All the videos I do recall taking I have copied onto my computer where they appear without any problem. I had, I thought, deleted them from the camera at the time.
When I select delete the camera says 'this picture cannot be deleted'.
I have successfully taken another video which plays.
I have complied with your instructions. The memory card is now back in the camera and continues to display 'this motion picture cannot be played' on playback and 'this picture cannot be deleted' when I try to delete!! The few pictures I had on the camera, including the video, are now loaded successfully on the computer and have been successfully deleted from the memory card. Now brain dead - breaking for lunch!
Yes - all photos and films were deleted as I imported from memory card to computer.
Yes - it still showed additional photos and films - though I could not see any of them as 'this motion picture cannot be played' is displayed on the playback screen.
I also again tried to delete and the same message i.e. 'this picture cannot be deleted' appeared. I tried multiple delete to no avail. The 'delete Multi' display showed 28 movie items each with an ! (exclamation mark) across it.