A Nightmare on Elm Street; 4 Film Collection - DVD - used

The first four Nightmare on Elm Street Films on four DVDs. 

A Nightmare on Elm Street (1984)
A Nightmare on Elm Street 2: Freddy's Revenge (1985)
A Nightmare on Elm Street 3: Dream Warriors (1987)
A Nightmare on Elm Street 4: The Dream Master (1988)