@echo off
::YOU HAVE TO DROP FILE ON BATCH OR USE BY "OPEN WITH >"
::CHANGE PATH TO FFMPEG WORKDIR
set ffmpeg=S:\ffmpeg\bin\
echo ;FFMETADATA1 > %ffmpeg%metadata.txt
for %%I in (%1) do set title=%%~nI
echo title=%title%>> %ffmpeg%metadata.txt
%ffmpeg%ffmpeg.exe -i %1 -i %ffmpeg%metadata.txt -y -map_metadata 1 -c copy 001.webm
move /y 001.webm %1