It plays everything perfectly: ISOs, MKVs, HD audio, etc. Give it the necessary time for your entire video library to index correctly (especially if it's very large and stored in the cloud), and you'll see what a fantastic application it is. If I had to find a fault, it would be that retrieving metadata through Google Drive triggers a Google block. It could be less intrusive when scanning and making requests to the Google API, but oh well... we'll have to put up with it. I don't know if Dolby Atmos and DTS:X audio playback will be implemented in the future. That would be the icing on the cake. Thank you very much, and keep up the good work.