I think they had earlier releases that are no longer available. They are also on facebook (you can be a "fan of" them there - just search Musica Romana and add them), by the way. You also get color liner note booklets with the CD's too. And yes, it is more difficult to get their music in the U.S. since they are in Germany, but we just don't have those type of groups here really, and they put a lot of their time and effort into research and performing for reenactment groups too. Thanks for posting and asking about them too!