I've been a convertxtodvd user for many years. I've never had an issue with any DVDs I've ever burned with this program at all. Well recently The DVDs I've been burning havent been playing in DVD players! They play in my xbox fine and even my friends car screen, but not in home DVD players. I recently changed my video codec pack to a windows 7 codec pack. Thats when I noticed the issue. So I switched back to klite, which is what I've always used. I don't know if your codecs affect anything but I switched back anyways. Any idea what would cause this to happen after all these years? I've never had an issue before.