This is the best sound of nature cd you'll find digitally recorded for the ultimate in clarity. You'll find yourself in the depths of the ocean with all sorts of sea creatures. We record digital audio for corporations and radio stations all over the world! I have a ton of sound effects cd's for making radio commercials but none measure up to what we have produced through multipule layers here. This cd is perfect for backgrounds, sound effects, or as a meditation and relaxation tool.