Most samples are recorded using SynthFont by Kenneth Rundt, a software synthesizer ("MIDI-to-WAV" tool) for playing standard midi files using SoundFonts. SynthFont is intended to mimic the behavior of SoundFont compatible hardware/sound cards like SoundBlaster Live! or Audigy. (SynthFont is modulator aware, which Live! is not.) But SynthFont is more. It also provides piano-roll view, an interface into the SoundFont structure and has basic midi and SoundFont editing capabilities.