"Led Zeppelin sounded best on my 8 track player in my car when I was 20. I recently bought a new vinyl version and it sounds terrible."
That’s unfortunate as vinyl is usually spared the bane of our times, compression.
But not always.
You might want to check out the variations between different masterings before shelling out in future to avoid disappointment.
The Steve Hoffman music forum is one, and Super Deluxe Edition is another.
https://superdeluxeedition.com/
As luck would have it the first record I bought was the Beatles Blue album in the mid 1970s.
For decades I wondered why it was that even as my system improved, that some subsequent Beatles LPs didn’t sound as good as that one did.
Then one day I stumbled upon a brilliant site where they hosted short snippets of different masterings and pressings.
Sure enough the 1970s UK Beatles 1967-70 was held up to be amongst the very best.
Sadly that site (Beatlesdrops) was taken down a few years ago, but it can still be found via the Wayback Machine / Internet Archive.
http://web.archive.org/