Are there any albums you consider perfect?


My daughter gave me an ipod for my birthday and I have been loading music to it slowly. As a perxon who listens to albums start to finish I have been loading albums I consider high quality beginning to end.
Makes me wonder how many perfect albums there are out there. Steely Dan's "Pretzel Logic" is to me perfect. What I mean by perfect is not one sound needs to be added or subtracted to make it better. Funny thing is, "Pretzel Logic" is not my favorite Steely Dan album, but its sound is perfect. I can only come up with a few.
Pink Floyd, "Wish You Were Here"
Tears For Fears, "Songs From The Big Chair"

timrhu
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The most interesting thread so far here... my two cents...

The 1st Symphony from Jean Sibelius
Scheherazade by Nikolai Rimsky-Korsakov
Spartacus by Aram Khachaturian
Ennio Morricone most of 
Take Five
Some Miles Davis
Some Simon & Gartfunkel
Electric Ladyland
In the Court of the Crimson King + a couple of live recordings
Valentyne Suite & Colosseum Live
To Our Children´s Children´s Children
Procol Harum Live with the Edmonton Symphony Orchestra, Grand Hotel
Yes 1st album, Fragile, Yessongs 3LP, Tales from Topographic Oceans 2LP, Tormato, & Keys to Ascension live
Trespass, Nursery Cryme, Foxtrot, GENESIS LIVE & BBC Crymes (from 1972, live in studio) + many live recordings from their pinnacle
All classic Barclay James Harvest albums with Stuart Wolstenholme
Abraxas & Santana III
Meddle & The Dark Side of the Moon
Salisbury & Look at Yourself
Aqualung
Led Zeppelin IV
666
Quella Vecchia Locanda´s 2 first albums
Smokin´
Machine Head
ELP, Brain Salad Surgery & Welcome Back My Friends to the Show That Never Ends 3LP
Blue Öyster Cult´s 2 first & On Your Feet or on Your Knees 2LP
The Captain and Me & What Were Once Vices Are Now Habits (cheers entrope, you ´ve got taste :)
Banco del Mutuo Soccorso all they recorded work in the 70´s
Le Orme´s Collage & Uomo di pezza
Museo Rosenbach
Alphataurus & Live in Bloom 2010 DVD
Arti + Mestieri´s 2 first albums
Sun Supreme
Mountain Twin Peaks Live 2LP
Harakka Bialoipokku
Scheherazade and Other Stories & Renaissance Live at Carnegie Hall
Apoteosi
Next & Impossible Dream
Maxophone
Celeste
Boston & Don´t Look Back
Point of Know Return
Infinity & Captured
Hemispheres & Moving Pictures
Obsession & Strangers in the Night 2LP
I Robot
Elegant Gypsy 
Friday Night in San Francisco 
Asia´s 2 first
PROG EXHIBITION 4 DVD set
GENESIS LIVE revisited, both DVD releases 

The actual sound quality/balance may not be perfect in some cases and is partly a matter of taste but the contend in question is perfect in its context.

i always though that if you replaced "going mobile" (which i never much cared for on who's next with "pure and easy", it would be perfect record.
that said, i wouldn't change a note on blonde on blonde or astral weeks, although there's a lot less venerable stuff i listen to more.