Can anyone tell me if there's really any compelling reason to buy "The Real Royal Albert Hall 1966 Concert" if you already have "The Bootleg Series, Vol. 4: Bob Dylan Live, 1966: The "Royal Albert Hall Concert" Live" as I do? I know the songs listed are identical, which would lead me to believe that it's the same thing, but the liner notes seem to suggest that it's a different recording, but I'll admit I'm dubious as to whether or why I should actually care. I know that the live version of "Like A Rolling Stone" on the bootleg Vol. 4 recording is a watershed moment in rock history far as I'm concerned, and if you ever wondered about the roots of the inspiration behind much of Bruce Springsteen's earlier music I'd submit you can clearly hear it here. Until I get to actually here the recording and can hear enough difference in it to justify another purchase I remain dubious. Sorry if this duplicates another discussion, but I didn't turn up anything along this line in my searches, so here it is.