I have been using a Panasonic DMC-TZ10 camera for the last 2 years or so for taking pictures and videos. At the time I bought the camera, iPhoto would not allow me to import videos and I had to import them to iMovies. Couple of months later after an iphoto update, I could finally import videos straight into iphoto events. All videos after that update play fine on the Apple TV but all the other videos that I later copied over from iMovie to iphoto do not and I am presented with a gray question mark on my ATV2 (latest iOS version). All the videos that I imported from iMovie -> iPhoto work within the app on my Mac. I am a bit puzzled, given that Apple TV is capable of playing all my latest videos taken with the very same camera, but cannot play the older ones. Any ideas and would it help to upload one of my videos for someone to check its codec infos. Thanks.