Jump Start Advanced Preschool "The Complete Get Ready for School Program" Published by Knowledge Adventure For ages 1-1/2 to 4 Media: 4 CDs Includes sections for Pre-Reading, Math, Thinking Skills, Music, Art, Languages Visit the JumpStart website for more information on this title. Compatible with Windows or MAC Original price for the software was $19.99. Disk 1 has been used a few times. The other CDs have never been taken out of their sleeves. (My grandson prefers other activities when he is at Grandma's house.) I have uninstalled this software from my computer so yours will be the legal copy. Shipping is USPS Media Mail