Disney has used the "vault" for theatrical showings since 1944, when they reissued Snow White and the Seven Dwarfs, though the last film actually re-released in theaters was The Lion King almost a decade ago. (Nowadays, a film is "released" from the vault to a reissue of home media (like Bluray).
Eisner was mostly responsible for changing vault releases to home media sales (like VHS or DVD) instead of theatrical releases.
Eisner was mostly responsible for changing vault releases to home media sales (like VHS or DVD) instead of theatrical releases.