During these same formative years someone/something named MECO began releasing disco versions of some of these John Williams themes. Back then I liked my burgers without cheese, but I had no problem adding these cheesy songs to my record collection. Every teen loves'em a little junk food.
MECO's first release (pictured on left) was huge. Back then, when you left a movie, it was 'gone' from your life. No tapes, no DVDs, no streaming. Later movies would be broadcast on television, but only once in a while at first. And so if you missed STAR WARS on TV, you missed it.
The only way to re-experience a favorite film was to either see it again, purchase a book/novelization, make room on your walls for a poster, give the soundtrack a spin, and sometimes... buy the MECO dance record inspired by said movie.
Now that I'm older and allegedly wiser I'm not sure I understand the legality of all this. How did Meco Menardo (MECO) get away with this? MECO minus the scores of John Williams would have been BROKE-O. You'll note the album cover (above) isn't actually based upon STAR WARS... but more an homage to the FLASH GORDON serials of yesteryear.
In time MECO wasn't satisfied with making Sci-Fi films of that age danceable. No, that would show a modicum of mercy. Meco Menardo's warped vision started going backwards. In a moment of musical madness MECO put THE WIZARD OF OZ score to a disco beat. I had to have it. Not only because I loved OZ but because... well... FAIL ARMY didn't exist yet.