@ECHO off

SET out="out"
ECHO Start time (seconds or hh:mm:ss[.xxx] format):
SET /P start=
ECHO End time (seconds or hh:mm:ss[.xxx] format):
SET /P stop=
ECHO.
ffmpeg.exe -i "%~1" -c copy -ss "%start%" -to "%stop%" -y "%out%\%~nxs1"