Hello I noted that mkv video files with 23.975 frame rate are played with lag, as the video was slowed. I am using the internal media player of Zidoo X9S. Do you have the same problem and there is a way to solve this problem ? I am a little bit disappointed because I have many video files with this frame rate... If I play these video files directly connecting a pendrive to my Samsung smart tv , I don't have any problem. Thank you.