The two-CD, 27-song set, out Oct. 7, contains previously unreleased studio recordings, demos, alternate takes, live tracks and rarities spanning 1989 to 2006, a rich period that generated the lauded Time Out of Mind, Love and Theft, Modern Times and Oh Mercy. A third 12-track disc is part of a limited-edition deluxe set in a hardcover slipcase with a book with photos of all of Dylan's singles. The 27-song version also will be issued in a limited-edition four-LP set.