Thank you so much! For all people who had a problem with the audio, just remux in mkv container using ffmpeg software with this line command... ffmpeg -i "Rihanna - What's My Name (feat. Drake) 1080p.mp4" -c copy "Rihanna - What's My Name (feat. Drake) 1080p.mkv" I think the MP4 container does not work fine with the 24-bit LPCM audio codec.