When the four-CD Byrds set was first released in 1990, it was something of a landmark in Columbia Records' history on several counts. For starters, it was the first box set ever released by Columbia Records' pop division (as opposed to its jazz division) devoted to a noncurrent act (that is, they'd already issued boxes on Bob Dylan and Bruce Springsteen, but both of them were active artists), and there had been boxes of sorts on Miles Davis and some other jazz figures, but their place in music history was already a given, whereas the Byrds, to Columbia Records' management and a lot of mainstream critics and even most listeners not attuned to their history, were "nothing" but a defunct rock act…