I'm hard-pressed to think of something considered a 'classic' hip-hop album that I haven't at least heard the whole way through several times......and in most cases owned at some point (if not on CD at least on cassette in the eighties).

Since albums didn't really start becoming a focus until around '86 (with the exceptions of a few Run-DMC, LL, and others) I kind of picked up from where that facet of hip-hop really started.

But there's mad 12-inches/singles from the early eighties that I'm not as well-versed in I'm sure.