I'm a little late on this one. Basically it's a complete soundtrack to Castlevania 3, with 2 extra medley tracks that cover CV1 and CV2. It's pretty standard as far as game covers go, except the recording quality is very professional, and he makes very appropriate use of other instruments too. You'd assume this was done by more than one man. I believe this beats Konami's own efforts with their "Perfect Selection" albums.
http://www.powergoat.com/page2.html