The Spotlite Bird/Dial LPs were all rebundled into a super super deluxe Warner Brothers box set, in anticipation of a Charlie Parker biopic starring Richard Pryor that never got off the ground. One of those things where you had to carpe diem in a BIG hurry. Fortunately, I had a good paying summer job and a connection at a good record store, so I was able to.
Some of the material was put out on Roulette, in the Echoes Of an Era series, but god only knows the provenance of that...however, there was one side of one of the LPs that was just four ballads in a row, and that still makes for one of the most satisfying listening experiences I know.
There was also at least one Charlie Parker Records LP of Bird/Dial, which one would hope would have been of legit sourcing. But it was kinda reverbed up to no real good end.
The Spotlite LPs, though were unsurpassed in terms of annotation, and equaled only by the WB box in terms of completeness (which makes sense, because the WB box WAS the Spotlite LPs).