It combines over 3000 edited wav samples of five studio drum sets in extraordinary sound quality. The recorded drum sets include drums from DW, Pearl, Sonor, Tama and Yamaha with Cymbals from Sabian, Paiste, Ufip and Zildjan. The two BATTERY CD-ROMs contain 12 different drum kits plus three big tom kits and eleven chromatic snare kits. These sounds cover a wide variety of musical styles like pop, rock, jazz and more. Up to 16 velocity layers per drum(separate for left and right hand) make the STUDIO DRUMS highly playable, expressive, and authentic.