Deutsche Grammophon highlights Placido Domingo's 70th birthday with the complete opera recording of Fedora.  Angela Gheorghiu, in the title role of a Russian princess who believes she has lost her noble fiancé to an anarchist-assassin against whom she swears revenge, sings with finesse and deep feeling.  The fiery Gheorghiu is utterly convincing as she falls in love with Loris--sung by Domingo--who, she discovers, murdered her fiancé not for political reasons but because he was having an affair with his now deceased wife.A strong supporting cast is led with deep sympathy for Giordano's achievement by conductor Alberto Veronesi.