The CD is a collection of songs recorded by Dietrich mainly in the 1950’s, with the first three tracks recorded in 1930 and 1931. A handful of the tracks are available on other recordings, but many have been languishing in vaults or private record collections until Sony picked up the masters and dusted them off. The sound quality is most impressive. Harry Coster did the digital sound restoration, and did it so well that one can hardly tell that the originals were 78s. The three tracks recorded in the 30’s do have that canned sound of recordings from the time, but without much of the hiss and pops of the old records. The rest of the recordings are fuller and warmer, a tribute to not only the re-mastering, but also the improvements in recording technology in the intervening twenty years.