Moratorium (entertainment)

A moratorium is the practice of suspending the sales of films on home video DVD, VHS, and Blu-ray and boxed sets after a certain period of time. Walt Disney Studios Home Entertainment was famous for this practice, known as the "Disney Vault," in which it would only sporadically sell home videos of animated films in the Disney catalogue, until 2019 when a program of undeletions and re-releases ultimately restored all Disney titles into simultaneous print on home entertainment for the first time and on the Disney+ streaming service.

Source: Wikipedia — Moratorium (entertainment) (CC BY-SA 4.0)