SET PATH=%PATH%;D:\Program Files\ffmpeg-2021-01-24-git-1775688292-full_build\bin;

@echo off
mkdir MP3

    for %%f in (*.*) do (
    echo "%%f"
    echo "MP3\%%~nf.mp3"
    ffmpeg -i "%%f" -codec:a libmp3lame -qscale:a 2 "MP3\%%~nf.mp3" 
)