That amazon set looks like a LE as it has a preorder cut off date. So the announcement would be for the separate films. And each film is 9K yen so that set is like a 4K saving.Oh? So it's just an announcement for the separate versions?
Hakujaden (The White Snake Enchantress) (1958, 1h18, Japan) by Taiji Yabushita
Presented by Toei Animation Company, ltd., Toei company, ltd.
etand National Archive of Japan. The project celebrates the 100th yearanniversary for the birth of Japan animation and 60th anniversary for the original theatrical release in 1958.
4K scan and restoration from the original negative, 35mm print, tape materials, and animation cels by Toei lab tech co., ltd. et Toei digital center are carried out. The restored data is stored in 2K."