the picture or video that you would like to protect.2. Select the Protect setting from the Playbackmenu as described previously.3. Use the Up/Down navigation buttons to selectOne to protect this picture/video, or select All toprotect all pictures/videos in the internal memoryor memory card. Then press the Right navigationbutton.4. Use the button to select Yes to lock thedisplayed picture/video or Unlock to unlock it, anduse the Up/Down navigation buttons to selectBack to return to the Playback menu.5. A key ( ) icon will appear on the top of the screento indicate that the picture/video is protected.DeleteThis setting allows you to delete a single or all filesstored in the internal memory or your memory card.To delete a picture or video:1. Turn your camera to Playback mode and displaythe picture or video to delete on the LCD screen.2. Select the Delete setting from the Playbackmenu as described previously.3. Use the Up/Down navigation buttons to selectOne, and press the Right navigation button.