Adding additional audio track to mkv

[elshagon]

I need to add an additional audio track to an existing mkv. Do I need to extract the audio/video from the mkv and start from scratch or is there an easy way to add the extra track into the existing mkv?

[buzzqw]

install mkvtoolnix

launch mmg.exe

drag&drop your input file, and add your audio file too

mux

BHH

[elshagon]

thanks buzzqw I was hoping it was that simple.