@echo off
set /p play=Play name: 
for %%I in (.) do set CurrDirName=%%~nxI
set year=%date:~10,4%
set name=%play% - %year%%CurrDirName:~-4%
echo %name%
(for %%i in (*.mp4) do @echo file '%%i') > list.txt
ffmpeg -f concat -i list.txt -c copy "%name%.mp4"
del list.txt
pause