THE most sonically dissappointing (lp) you own of great music?

I of course disagree about Passion Grace &Fire if you are talking about music. Sound is bad, very digital.
Friday Night sounds excellent on original Japanese pressing, I never compared it to anything else. I always go after original Japanese wherever possible. Not necessarily best in everything in all cases but so far I have never had a bad copy. And Japanese vinyl from 70s and 80s that I have is so quiet and looks as if it had been made recently.

McLaughlin/de Lucia/di Meola - Passion Grace&Fire. Digital recording and mastering from early 80s. It is listenable but still terrible. Original Japanese LP is best by far. If you can find pro - even better.