The Roku Media Player is so out of date it is ridiculous. The codex is extremely limited and the formats it will play are also extremely limited. When I try to play something from a USB on the roku ultra and it won't play, I plug the USB into the USB port on my smart TV and it plays fine. It is very irritating to keep having to do this. It shouldn't be that hard for Roku to update the app. It makes me wonder about continuing to use Roku.