I only just installed Handbrake a few hours ago, and proceeded to convert my music videos which I want to play on my iPod. The original videos before conversion were ".avi" and ".mkv" (Matroska Video). The converted videos - M4V - play fluently on iTunes itself, but don't sync to my Touch. I don't really want to play it on iTunes, but rather, just on my Touch. Have I possibly used the wrong converter? No error messages come up. Open to ANY suggestions, and help. Thanks very much in advanced.