An early version of the "Star Wars" expanded universe, this radio version of the story (broadcast over but not taxpayer funded by NPR, thank goodness; why should I pay for Lucas' work?) incorporates material from George Lucas' original script and the novelization, as well as daring to connect a few dots on its own, leading to nonsense like the second-hand droid lot.
Some adjustment is needed for listeners who have seen the movie too many times.
Despite being full of John Williams' brilliant music, Mark Hamill and Anthony Daniels are the only voices from the movie (and R2D2, of course). Though Perry King, playing Han Solo, was up for the film role, you can gauge for yourself why he didn't get it.
Bernard Behrens isn't bad as Ben Kenobi, though he lacks Alec Guinness' unique qualities. Keene Curtis, familiar from many contemporary TV shows, is a suitably imperious Grand Moff. Brock Peters, always a first-rate actor, eerily fills out the voice of Darth Vader. I'm unfamiliar with the actress playing Leia but she makes no effort to sound like Carrie Fisher. Why should she? She's shockingly effective when "given the needle." The narrator is very good and moves the story right along.
I like the original "Star Wars" movies, but I like lots of movies and I've only seen the original trilogy perhaps half a dozen times in 40 years. I've seen all the other "Star Wars" movies once. Therefore, I think I'm more the audience for this radio dramatization than obsessive fans: I like "Star Wars" and eant to know a bit more about its plot-holes, but it's not sacrosanct. If you're the type who has to know everything 'Star Wars," try it on for size.
Warning: some of its material conflicts with "Rogue One."
BTW, some reviewers call radio drama a lost art but radio dramatization never died in Britain and is still going strong. Don't miss the original radio version of "The Hitchhiker's Guide to the Galaxy." The BBC has provided much radio sci-fi, where your imagination provides its own CGI.