Sony takes portable digital to the extreme, offering 96k, 24-bit recording in the field. The Sony PCM D1 looks like something out of a Star Trek episode, with titanium features, a built-in preamp, a high-pass filter, plus a matched pair of condenser mics with 30k frequency response for high-def recording. You won't be able to hear all the frequencies you can capture with this field recorder, but your dog can!