For me its the first or very early LP's of: Allman Brothers - "Allman Joys" "Idyllwild South" Santana - "Santana" 200 g reissue Emerson Lake and Palmer - "Emerson Lake and Palmer" and, Beethoven - "Piano Concerto No. 4 in G Major" Rudolph Serkin/Ozawa/BSO
Another copy of Sgt. Pepper. The first one was the Giles Martin 1/2 speed remastered 50th anniversary edition. This one is "Taken from 2009 EMI digital remaster". They sound less different than I thought they might, but I definitely have a preference for the Giles version.