This was used by a child currently in 6th grade after being purchased new. Petit: 3 discs Pocket: 6 discs Hopping: 6 discs Step: 6 discs Jump: 5 discs Pocket, Hopping, and Step each have all the discs for one year. Jump is missing the January-March issues. I played a few discs and they worked fine. I haven't checked all of them.