I went to Walmart and picked up a Canon SureShot Owl PF date for my first trail cam. It was on the clearance shelf and the last one in the store. I asked why it was being discontinued and was told that there was a problem with the auto rewind with too many of the units sold. I went ahead and purchased the camera. The rewind problem is evident within the first few roles of film. Has anyone had any trouble with there Canon Owl? I also bought a Regent security light MS20WC. The circuit board looks like the right one. I'm just wondering what the "W" in MS20WC means.