MP4 to MKV BATCH

@echo off

set mkvmerge="D:\Apps\MKVToolnix\mkvmerge.exe"

for /F "delims=" %%M in ('dir /b *.mp4') do (
IF EXIST %%M CALL :MP4MERGE %%M
)

GOTO END

:MP4MERGE
set source=%~nx1
set target=%~n1.mkv
%mkvmerge% -o "E:\%target%" --track-name 0:"" --compression 0:none --track-name 1:""  --compression 1:none --no-global-tags "%source%" --title ""

timeout 1 >NUL

:: CLEANUP
IF EXIST "E:\%target%" (
RM -f "%source%"
)

:END