Check the followings: 1. When there are several folders inside DCIM folder in the card, the images can be played back by the unit of folder. Select "View folder" from playback menu. 2. When the folder organization and the folder name are changed, the images may not be played back by the camera. Change the folder organization and the folder name back to the initial setting and try again. 3. The image files editted or rotated on PC may not be played back. In this case it is impossible to play back the images by the camera.