Hi there, Got my apple tv yesterday, have still some questions. I've had some movies that were .mkv but I've reencode them into .mp4. They're HD 720p. And these movies couldn't stream. Apple TV found them but when I'm trying to play them, he's just trying to stream, but play nothing. That's not the deal, because, apple tv streaming my HD 720p trailers from mac, just fine. If I sync them directly to apple tv, everything is allright. But I just couldn't stream them. My networg is 802.11g, but still, I can stream all of my DVD(mp4) movies and 720p trailers. Why do I bother? Because the size of one movie is about 6gb... it tooks quite long to sync it. And actually I'm not sure whether Airport Extreme 802.11n will help in this case. Here are the movie info: Data rate: 6941.41 kbits/sec FPS 23.98 Size: 1280x544 Here (for example) movie info from apple 720p trailer (streams fine): Data rate: 6189.69 kbit/sec FPS: 23.98 Size: 1280x544 Also, if I'm syncing a movie and disturb it, just easily trying to play it on apple tv, the syncing is automatically cancelled, and, I'm losing all date that has been synced already. Do you have the same? Check it.