cask :v1 => 'mp3gain-express' do version '1.2' sha256 '4bf1f7f900e11830ccb0acf248d1873d14db8b6b0e87386770adf85b6b6eda35' url "http://projects.sappharad.com/mp3gain/mp3gain_mac#{version.sub('.','')}.zip" homepage 'http://projects.sappharad.com/mp3gain/' license :oss app 'MP3Gain Express.app' end