When played in a DVD system, this Surround Sound DVD sounds amazing and is accompanied by compelling forest imagery onscreen. This disc allows you to enjoy pure nature in surround sound! These recordings of pure nature sounds without the addition of human voices or music help you to relax by creating a restful environment free from any source of stress. These sounds provide a wonderful background, neutralizing traffic and other city sounds. This can help the listener one to drift to sleep or focus while studying.