I own the "Midnite Movies" DVD of this film but decided to buy the Blu Ray release anyway. The transfer looks terrific in this movie's original 1:85.1 widescreen aspect ratio.
The Blu Ray release includes a trailer and audio commentaries. The Kino Lorber Blu Ray release can be found for sale at Amazon and at a very affordable price. Fans of classic monster movies who haven't seen The Monster That Challenged The World(1957) should definitely check this one out!
An HD trailer: