This is a complete adaptation of the revised 1990's edition of The Martian Chronicles, which means that it does not include the story Way in the Middle of the Air, but adds The Wilderness and The Fire Balloons. Way in the Middle of the Air was removed from the 90's editions of the book most likely because it examines racial prejudice in America around the time the story was written (1950) and uses the "N" word. It was replaced with The Wilderness in the revised editions. The Fire Balloons was added to the British edition of The Martian Chronicles known as The Silver Locusts, and is also included in The Illustrated Man.
This is an extremely faithful dramatization taken directly from the book. Its probably as faithful an adaptation as could possibly be performed, hence the long running time. The performances are very Bradbury-esque, meaning a little over the top but wonderfully alive.
There are neat sound effects and some occasional music on the soundtrack. The Martian Chronicles itself is a very musical book, mentioning music in a number of its chapters, the music in this dramatization fits right in and compliments those parts of the stories.
Altogether, this is a great buy and a perfect companion to the unabridged reading of the original edition narrated by Ray Bradbury that's also available on Audible.
The script for this audio drama was written by Ray Bradbury hisself. After hearing this production of his script by The Colonial Radio Theater, Ray sent them an email saying, "Dear Jerry, I've just played for the second time your production of Dandelion Wine and its fabulous. I'm so very proud of it, in fact it made me weep. In your own way you've told me that I have a chance of part of me living beyond the day that I leave this Earth. This production is simply incredible. I can hardly wait to see what you do with Something Wicked This Way Comes. I know it will be fantastic. Please thank everyone involved and let them know that they moved Ray Bradbury to believe in himself. God bless and happy new year, Ray."