i'm sorry, 3 commentary tracks pala...here's part of the review from dvd.ign.com:
Disc one is pretty much identical to the barebones release. Even the menus are similar, only with a different animated background this time around. There is one very notable exception, though. The first disc includes three commentary tracks, all of which are insightful into different parts of the movie.
In one track you get Director Ridley Scott and Producer Jerry Bruckheimer mainly discussing the production, shots and logistics of the movie. Next up are book author Mark Bowden and screenwriter Ken Nola discussing the story and some of the historical context of the film. The third commentary, and in my opinion the most interesting, is with four Task Force Ranger Vets who were actually involved in the operation in Mogadishu. MSgt. Matt Eversmann, Col. Tom Matthews (ret.), Col. Danny McKnight (ret.) and Col. Lee Van Arsdale (ret.) take you through the operation as it really happened, and point out where the film got it right, and where they took some liberties with the actual events to make them a little more dramatic.