My 16 year old daughter (ballet student, ballet lover), would like to start a collection of ballet Dvds/videos. I believe she is primarily interested in performance videos, especially of the classics, but "contemporary classics" would be great, too. Which videos do feel are the best of the best, and why? Do you feel there is a specific performance of a well-known ballet that is remarkable for its interpretation of the choreography, its staging, or the quality of the dancing? Are there lesser