The DTS Master Audio 1.0 mono track is pleasing. For the most part, it sounds clean and doesn't show its age. The dialogue is intelligible and doesn’t get overpowered by Max Steiner's score.
Warner Brothers delivers a great number of enjoyable special features that were previously available on the 2003 two-disc special edition DVD.
With an optional introduction by Leonard Maltin, "Warner Night at the Movies" presents an evening at the movie theatre in 1948 (SD, 29 min). There's a trailer for Key Largo; a newsreel that offers items such as a tornado aftermath in Cotton Valley, Louisiana, and the Chelsea Arts Ball at the Royal Albert Hall; "Hot Cross Bunny" features a scientist attempting to use Bugs as a test subject; "So You Want to be a Detective" features George O' Hanlon (the voice of George Jetson) as Joe McDoakes in this Ricahrd L. Bare-directed, comedy short that offers some mild laughs.
John Huston: The Man, The Movies, The Maverick (SD, 127 min) is a thorough biography from 1989, two years after he died in 1987. Narrated by Robert Mitchum, Lauren Bacall, Paul Newman, and his daughter Anjelica are among those collected singing John's praises and discuss his interesting life. "8 Ball Bunny" (SD, 7 min) finds Bugs attempting to take a penguin home. Bogie's Dobbs makes an appearance. "Discovering Treasure: The Story of The Treasure of the Sierra Madre" (SD, 50 min) is a 2003 TCM documentary featuring Martin Scorsese along with film historians and critics discussing the film. There is also an audio commentary by Bogart biographer Eric Lax, a
Lux Radio Theater Broadcast from 4/18/49 (60 min) with Bogart and Walter Huston reprising their roles, and the film's trailer.
The Treasure of the Sierra Madre may be more precious than gold so get yourself a copy.