The product is a 4 CD set featuring the opera "Wagner - Parsifal" conducted by Hans Knappertsbusch, with artists such as George London, Martti Talvela, and Hans Hotter. The set includes a book and was released in 2001. The audio CDs provide a comprehensive listening experience of this renowned work by Richard Wagner, captured with high-quality sound and featuring renowned vocalists in lead roles. This collection is a must-have for opera enthusiasts looking to immerse themselves in the intricate and deeply spiritual world of "Parsifal."