MKVMerge add .srt subtitle in batch

Question

I'm looking for some command / script to scan my designated folder, merge the srt files (same name as video) with avi/mp4/mkv files to get mkv files, and then delete the original files (video AND subtitle).

Now I have this code (not mine, from some authors I combined):

@echo off
for /R %%A IN (*.mkv *.avi *.mp4) do (
"C:\Program Files\MKVToolNix\mkvmerge.exe" -o "%%~nxA_CZ.mkv" "%%~A" "%%~nA.srt"
  if errorlevel 1 (
                echo Warnings/errors generated during remuxing, original file not deleted
            ) else (
                del /f "%%A" "%%~nA.srt"
                echo Successfully remuxed to "%%~dpna (No Subs)%%~xa", original file deleted
            )
            echo.
        )
    )
)

Which kind of works, but I have a few problems.
The /R parameter isn't working, don't know why, but when I place it in a folder with subfolders it only scans the srt files in it and I get a "Can't open" error. (This error also appears for files in a single folder but in the end it does what I need.)

Any idea how to fix my problem?

Answer 1

this is how you should add subtitle:

mkvmerge.exe -o "output.mkv" --audio-tracks 1 --no-subtitles --no-attachments 
--no-chapters --language 0:und --default-track 0:yes --compression 0:none     
--language 1:und --default-track 1:yes --compression 1:none "input.mkv"       
--language 0:und --compression 0:none "input.srt" --track-order 0:0,0:1,1:0   
--probe-range-percentage 0.50