Get the URLs from the HTML source of a youtube page
install the youtube-dl and add to path.
install the ffmpeg and add to the path, ex: PATH= Z:\media\ffmpeg\bin;[...]
high quality audio
z:\app\youtube-dl\youtube-dl.exe -x --audio-format mp3 --audio-quality 0 --no-overwrites -i -a playlist.txt
download 128bit format audio
z:\app\youtube-dl\youtube-dl.exe -x --audio-format mp3 --audio-quality 128K --no-overwrites -i -a playlist.txt