I once had LPs of Carl Nielsen's string quartets by the Copenhagen String Quartet, released on Turnabout from (I think) the Fona label in Denmark. I got rid of them after other versions appeared on CD 20-30 years ago, figuring they'd reappear on CD too, but so far they haven't. They also recorded quartets by Sibelus, Grieg and Gade.
Milhaud, Complete String Quartets on Naive. Out-of-print and overpriced, if available at all.
I've been on something of a Peter Maxwell Davies splurge in recent months. Naxos have done a sterling job in re-releasing many recordings which were originally on the now-defunct Collins label but there are one or two important works yet to be included in the re-release programme, including this opera (the occasional used copy on Collins currently selling for over £30 on Amazon's marketplace) which I'm especially keen on getting:
'...a violator of his word, a libertine over head and ears in debt and disgrace, a despiser of domestic ties, the companion of gamblers and demireps, a man who has just closed half a century without a single claim on the gratitude of his country or the respect of posterity...' - Leigh Hunt on the Prince Regent (later George IV).
I wish that the original Concert-Disc recordings of the NY Woodwind 5tet would be issued complete - these have appeared on alternate labels, but some are missing - among the most notable - the Beethoven Chamber music disc - 6tet, 8tet and Rondino for WoodWinds...
I doubt we will ever see these tho - the market is pretty small.
I know they never will now but I wish they would re-release the original Philips Complete Mozart Edition from the 90's with all the booklets they left out in the reprint from back around 2000. Been going through the whole set again and some of my copies are looking pretty ragged.
The new Mozart 225 has soooooooooooo many horrendously lousy recordings in it. Why they couldn't just add a few new things that weren't in the original set and leave the majority of the original fantastic recordings in the set I will never understand. That seems to be the trend today though I guess, replace great recordings with lousy ones.
"I propose to create a heroic, monumental style of composition simple enough to inspire all people; completely free from fads, artificial mannerisms and false sophistications; direct, forceful, sincere, always original but never unnatural."
Still waiting for La Navarraise by Jules Massenet with Lucia Popp, come one Sony do us a favour.
First they ignore you, then they laugh at you, then they fight you, then you win.
I want this but cannot find a copy. I have two of the operas on DVD that have arias on this disk (Haydee and Dinorah) and she is very good. See article about this disk.