Trent Reznor and his band Nine Inch Nail have released a 36 track instrumental collection entitled Ghosts I-V under the Creative Commons Attribution Non-Commercial Share Alike license. The first 9 tracks are available at no-cost as "high-quality, DRM-free MP3s, including the complete PDF." They note that MP3s were encoded using the free software program, LAME, at 320kbps.