Brand new in this nearly two-hour program are occasional introductions by Jean Butler, which help explain some of the ambiguous stage action. Bonus features are a new one-hour documentary about the history of the show, 16 minutes of high-speed backstage footage, and an eight-minute performance from the 2003 Special Olympics. Some viewers may find the introductions or the performance switches jarring to the flow, and The Best of Riverdance is surely not a substitute for the complete performances of the show, but it is a nice compilation, and offers some footage that you can't see anywhere else. --David Horiuchi