You can view this animated short if you purchase the Casablanca 2-disc Special Edition DVD.
My only complaint about the short is that it is, well, too short. They could have extended the storyline to put in more gags and references. I'm also a little upset that they left out classic lines ("beautiful friendship") and a semi-important character (Ferrari, which could have been played by Elmer Fudd).
Otherwise, it's a fun little short that fans of the movie (and WB cartoons) will enjoy. It would have been interesting to see how the original WB artists/writers of the "Casablanca" era would have done it, compared to this 1995 version.