Format Samples are in .wav file format. There are three volumes of left and right hand hits, as well as left and right hand rim shots and a press roll. There are also "instrument" files formatted for Kontakt samplers that have the wave forms already mapped out. These include volume adjustments and slight panning between left and right hand hits. (This helps enhance the stereo field while also keeping the snare from landing on top of the vocal - which is generally centered in a mix). Kontakt is currently the only sampler format available.