I own 3 entire collections:
1) The first releases was yet mastered to vinyl, and some have so bad sound I think they were not mastered from the masters tapes, as Saucerful, even Piper w/that raw sound has better stage.
2) Second batch of PF already mastered especially to CD, the Meddle album is from the Harvest label with that label in black.
3) The 3º collection was from mid 1990s fully remastered with some kind of upsampler, better sound with an audible sound envelope.
I also own some Jap SACDs as DSTM, WYWH.