My new Roamio, the "device to rule them all" as in play anything and everything does not seem to know how to play MP4 files. The only way I can play them is convert them to MPEG2 files. Am I doing something wrong, or is Tivo just full of it with their advertising? Because if the Roamio can't play MP4 files, it's abilities to handle lots of different file types like you would see with Internet and streaming TV is, well, nothing. Anybody know anything about this?