I was more or less referring to the unreleased Doobie Brothers, Joni Mitchell, Seals and Croft, The Eagles, Maria Muldaur and other former CD~4 Warner releases which are seemingly unavailable for QUAD SACD reissue. And there are a slew of other worthy Warner QUAD titles which, IMO, are worthy candidates for hi res physical disc release. I know Adam [fredblue] and other posters have them on CD~4 vinyl.
we've already had a couple of Warner's big hitters with AF's Doors & Bread Quad SACDs.. plus the amazing thing of getting the previously unreleased Spectrum Quad from AF.. wow.. but what's left of the Warner/Elektra/Asylum & Atlantic/Atco Quads that's really essential - and has great mixes - and will sell well enough to justify doing?
not a great deal really, I'd say.. Doobies definitely.. beyond that.. The Eagles.. the other Alice Cooper.. maybe Carly Simon's Best Of, the Joni Mitchell's would probably be sought after at this point too.. personally would like the Roberta Flack, Donny Hathaway & Spinners Quads but black music's a hard sell in Quad it seems..
also, would be fun to have one of the real discrete workouts like Stardrive's Intergalactic Trot (I can't imagine licensing that would be very onerous or expensive!) but what else is there? The Seals & Crofts mixes are pretty underwhelming, the Maria Muldaur is really not a great album (imho!).. Warners have themselves scotched the possibility of Quad reissues of Black Sabbath & Bette Midler, such a shame.. and the rest is either crappy albums by artists that couldn't get arrested now let alone shift product.. and/or mediocre mixes.
I'm focusing my attention (and hopes!) elsewhere at this point.. the Sony vaults are where its at, for me (still almost all of the best mixes I've heard were on Columbia/Epic/PIR etc. and some great RCA ones too) and lots of artists and genres to choose from that come under Sony's umbrella I would say