01 Up M4a Direct

ffmpeg -i "01 UP.m4a" -metadata title="UP" -metadata track="1" -codec copy "output.m4a" If “01 UP” means track 01 of album “UP” or artist “UP”:

CloudConvert, Zamzar – but be careful with privacy. 4. Editing metadata (title, artist, track number) Since the file is named “01 UP”, you might want to set correct tags. 01 UP m4a

Example batch rename (Windows PowerShell): ffmpeg -i "01 UP

ffmpeg -i "01 UP.m4a" -codec:a libmp3lame -qscale:a 2 "01 UP.mp3" Media → Convert/Save → Add file → Convert → choose MP3 profile. 01 UP m4a