@Ricardus My personal gripe in that vein is that, as far as I can tell, there exists no recording of the version of the Star Trek: The Next Generation theme used in the end of Star Trek: Insurrection that isn't painfully dynamic range compressed.
Listen and cringe:
https://www.youtube.com/watch?v=qMsmsQUC2_4
I don't expect it to make me tear up like the "welcome to Jurassic Park" moment in the Jurassic Park theme (https://www.youtube.com/watch?v=PJlmYh27MHg), but, as-is, it just leaves me feeling cheated.
@ssokolow My TNG disappointment is that I can't find a recording of the arrangement of Picard's song the way he and Nella Darren played it in the Jeffries tube. Just piano and Ressikan flute. There's all of these overdone orchestrations but that original is far and away the best. I'm actually friends with Michael Okuda the design artist who worked on the shows and the films, and I asked him to ask the music producer, and he doesn't think that version exists.