So it looks like there is a known issue with Handbrake and encoding from some file formats. Or at least I'm having issues, and the same error is coming up for other people, so I'm assuming it's an issue. What I'd like to do is convert a small selection of the .mp4 files that I have for the AppleTV into a file that is playable on my iPod. However whenever I try just selecting the .mp4 file in Handbrake and then choosing the iPod preset, I get a stack dump. Does anyone know if any other programs to use or another method that will let me convert movies from one Apple format to another? Thanks!