Latest Version Step by Step Blu-ray 12-Volume Set This is the Blu-ray disc for the main program. I only watched the beginning for a few minutes as a test, so it's mostly unused. There are no noticeable scratches on the case. There are some minor scratches on the discs. Blu-ray compatibility seems to vary quite a bit depending on the device. All discs played on my home computer's Blu-ray drive (Logitech). Please be aware that depending on your environment, you may be able to watch it without any problems, or you may experience issues. *Due to the nature of the product being a copyable item, returns and exchanges are not possible. Thank you for your understanding. [Series Overview] Disney World of English's "Step by Step" is an educational material that allows children to learn English in a fun way. It consists of 12 volumes, and each volume features charming characters. [Content Details] This series is designed to help children learn the basics of English in an enjoyable way. It is provided on DVD and Blu-ray media, and the content is visually appealing. [Target Age] This is mainly for preschool to elementary school children, and it is the perfect educational material for starting English learning.