This Lego Mindstorms set comes with five different CDs that cover a range of topics including Mars, robotics, sports, and extreme activities. These CDs are a great addition to any Lego enthusiast's collection and provide endless hours of educational and entertaining content. The packaging of this set comes in a box, making it perfect for gift-giving or storing on a shelf.

I'm assuming these all came with certain lego sets, but I don't know. 

I'm sure these are pretty rare and someone might need them to complete an old set.