LeapFrog DVD 10-Disc Set Purchased from the Amazon official website 4 years ago to introduce my child to phonics English. Not used very often. 9 discs have been tested and confirmed to work, 1 disc is unopened. (Please understand that this is a visual inspection by an amateur.) As shown in the image, there is damage to the cases of 2 discs. Although there is damage, the cases can still be used. It seems that the viewing media is limited because it is region-free. At home, we used a DVD player that plugs into a computer via USB and projected the image onto the TV screen. The picture quality and video are a bit dated, but I think it's very good that phonics comes up repeatedly with various music. Please feel free to ask if you have any questions. [The following is a quote from the internet] ● Scott Series 1: Phonics Farm Learn phonics pronunciation through songs. 2: Adventures in Shapevil Learn the names of shapes and measure length in English. 3: Magnificent Museum of Opposite Words Learn antonyms and synonyms. ● Tad Series 4: Talking Words Factory Learn how to read the sounds when alphabets are connected. 5: The Letter Machine Rescue Team Learn how to read words. 6: Counting on Lemonad Learn numbers up to 20, addition, and subtraction through playing shop. 7: Let's Go To School Learn the seasons from January to December. 8: Math Adventure to the Moon Learn patterns and shapes with rules and numbers. 9: Math Circus Learn numbers, counting by tens, addition, and subtraction in a circus setting. 10: Learn to Read at the Storybook Factory Develop basic phonics skills to reading English sentences. This DVD is Region 1 (NTSC) and can be viewed on region-free DVD players, laptops, and desktop computers. *Please note that it cannot be viewed on Japanese DVD players that are Region 2.