Casablanca was initially released on Betamax and VHS by Magnetic Video and later by CBS/Fox Video (as United Artists owned the rights at the time). It was next released on laserdisc in 1991, and on VHS in 1992—both from MGM/UA Home Entertainment (distributing for Turner Entertainment), which at the time was distributed by Warner Home Video. It was first released on DVD in 1997 by MGM, containing the trailer and a making-of featurette (Warner Home Video reissued the DVD in 2000). A subsequent two-disc special edition, containing audio commentaries, documentaries, and a newly remastered visual and audio presentation, was released in 2003.
An HD DVD was released on November 14, 2006, containing the same special features as the 2003 DVD. Reviewers were impressed with the new high-definition transfer of the film.
A Blu-ray release with new special features came out on December 2, 2008; it is also available on DVD. The Blu-ray was initially only released as an expensive gift set with a booklet, a luggage tag and other assorted gift-type items. It was eventually released as a stand-alone Blu-ray in September 2009. On March 27, 2012, Warner released a new 70th Anniversary Ultimate Collector's Edition Blu-ray/DVD combo set. It includes a brand-new 4K restoration and new bonus material.