I have a bunch of files with .mp4 files that say format of this media is not supported. I also use other sites, h u l u, and get the same response. They work on my ps3 but nothing is working here. ESPN said the exact same thing. Does this thing do nothing for someone like me who streams without a cable bill. Maybe a factory reset without ever updating? If there is a free program, no plex, that works to stream sites and files please help me. It is just unusual that my roku plays all and this plays nothing.