Solved by *sneaker_ger* for %%a in (*.mkv) do ( ffmpeg -i "%%a" -i "%%~na.mp3" -vcodec copy -acodec copy -map 0:0 -map 1:0 -map 0:1 "%%~na1.mkv" ) So thanx to him! -- View this message in context: http://ffmpeg-users.933282.n4.nabble.com/output-w-two-audio-tracks-tp4421279p4421628.html Sent from the FFmpeg-users mailing list archive at Nabble.com.