EDIROL UR-80 Memory Set Package for MOTU Digital Performer 4 For Product(s): UR-80 This package turns EDIROL UR-80 as perfect cooperator for MOTU Digital Performer 4. Also, UR-80 Editor will help you to load SMF data into UR-80 to link their physical controllers to MOTU Digital Performer 4. For Operating System(s): MacOSX