@echo off
REM convert all MKV in current folder to MP4, video and audio copied


FOR /R %%I IN (*.mkv) DO CALL :ffmpeg "%%I"
pause

exit

:ffmpeg
  "C:\Program Files\Serviio\lib\ffmpeg.exe" -i "%~nx1" -vcodec copy -acodec copy "%~n1.mp4"
GOTO :eof