This is a wonderful compilation of 7 episodes focusing on the 2 main characters from the title. Many if the episodes are tied together somehow yet are from different seasons of airing making it simpler to remember the details of the previous episode. You also get to witness the evolution of the supporting cast which answers alot of questions in itself. If I were to own only one CSI version, this would be it. 2 disc set is well priced for what you get.