This was renewed in the spring of 2019. It's not very popular because it requires remote control operation, but it contains almost all of the stories and Sing Along songs, as well as lessons, making it a core教材 of the Disney English System. I think it's more effective when parents participate, so if you can use this well, the cost-effectiveness will be high. The Blu-rays are generally clean, but some have minor scratches. I have checked the playback of several discs on my playback environment. Blu-rays are delicate and seem to be affected by compatibility with playback devices. Some may stop or skip depending on the device. The cases have cracks, discoloration, and writing, so they are treated as packing materials. No individual sales. World English World of English Disney English System Disney English Sing Along