Hi Dave, thanks for responding. All of the scenes were taken on the same day at a wedding on the same JVC camcorder which has a hard drive. I'm by no means an expert so the camera was set to auto all through. This was then captured via Roxio on my laptop, video edited, sent to my DVD, burnt onto a disc and played. On playback the scenes definately are a mix of 16.9 and 4.3 but I dont understand why.