The five-disc DVD set of Game of Thrones' second season provides an exceptional amount of supplemental material on the show's production, primarily through 12 commentary tracks, including multiple tracks on single episodes.

Both die-hard fans and first-time viewers will appreciate the length and depth of the extra material included in the set, which expands greatly on the already massive world of Game of Thrones.

Among the participants are the main cast, including Dinklage, Headey, and Coster-Waldau, as well as series co-creators David Benioff and D.B. Weiss; director Neil Marshall (The Descent), who helmed "Blackwater"; and Martin himself, who explains many of the differences between his source novel and the program.