: This indicates that the file also includes the English audio track (likely the original language for Narcos ) or English subtitles.
# Example using mkvmerge (merge Hindi + English) mkvmerge -o "Narcos.S02E01.mkv" \ --language 0:hin --track-name 0:"Hindi ORG 5.1" video.h264 \ --language 0:eng --track-name 0:"English 5.1" audio_eng.ac3 \ --language 0:eng subtitles.srt
: This indicates a high-definition video file sourced directly from a streaming service like Netflix .