While I can understand the former response regarding the realism of this DVD, I will have to say that if a real aquarium is what you want, this DVD comes close, but is no substitute. If your goal, however, is to have a relaxing moving picture to brighten up your dark square, this DVD is awesome! There is a slight bit of cloudiness, but not enough to warrant a "pass" on this opportunity.
Unfortunately, the new age/mood music isn't the best. But, you're not buying this for the music. You're buying this for the visual spectacle. As for the other audio options, the fish tank sound fx are a bit hollow. However, the surround sound ocean waves is VERY good! If you have the option on your receiver, it is better to set the video to the DVD, and have a personal CD as the audio.
I am very happy with this purchase. For a [money] investment, I'm very pleased. Nice work!