When Play was released, I kind of thought my career was over," says Moby. He's speaking from the sparse, utilitarian Manhattan studio where he recorded the 1999 smash in the years before the walls were dotted with awards documenting its 10 million copies sold. Play wasn't the first album to make a rock star out of an insular techno nerdnik, but it was the first to make one a pop sensation. An effortless blend of atmospheric swoops, block-rocking beats and bluesy a cappellas nicked from...