Cakewalk's SONAR is a digital audio and MIDI production software package designed and optimized exclusively for the Windows platform. SONAR offers unlimited digital audio and MIDI tracks; a centralized interface design for improved creative workflow; advanced audio looping and editing tools; ReWire 2.0 support; global support for control surface hardware; DXi software synthesizer plug-ins; automatable DirectX 8 audio plug-ins; real-time MIDI FX plug-ins; and ACID-format audio loops and SoundFont libraries.