Opel CD 30 MP3
for i in *flac; do ffmpeg -i "$i" -codec:a libmp3lame -qscale:a 5 "$i.mp3"; done; rm *flac; rename flac.mp3 mp3 *; mp3gain -a *mp3
for i in *flac; do ffmpeg -i "$i" -codec:a libmp3lame -qscale:a 5 "$i.mp3"; done; rm *flac; rename flac.mp3 mp3 *; mp3gain -a *mp3