Shichida Method Brain Development CD - 4 years + 8 months worth

These are ability development CDs from the Shichida Method's early childhood course.
I attended Shichida Method from August 2019 (when my eldest daughter was about 2 years old), and these have been stored on a bookshelf rather than being disposed of.

Rabbit (2-year-olds) August~
Cat (preschool)
Dog (preschool)
Bear (kindergarten) CDs not included

Total of 56 months.
(44 months include CDs)
Both booklets and CDs are complete with no missing items.
*From the 2023 academic year, the program transitioned to app distribution, so CDs are not included from the Giraffe course onwards.

CD Condition
As an example of the CDs used most frequently, I have included photos 8 and 9.
I tested a few CDs randomly, and they played without any issues.

My younger child (preschool) is also currently attending Shichida Method, but they don't watch the app distribution much, and CDs are more convenient for background listening. For this reason, I am hesitant to part with the Dog and Bear courses.
I would like to sell them if they can be purchased as a complete set at this price.