Forgotten Authors Yes, there are two audio recordings of the opera. The first (Wergo), was released in 1965, shortly after the premiere. And the other one issued in 1989, from Teldec. About video recordings (the best way to see this opera), you can chose either the Arthaus DVD featuring the same singers as in the Teldec CD, or a 2012 performance filmed at the Salzburg Festival, from Unitel Classica.
Forgotten Authors If you ask me, I would recommend you to get the Arthaus DVD. The production is quite faithful to the composer's intentions. The thing is that is quite expensive and is not sold in the US, but you can order it from Amazon UK.