The Fritz Reiner RCA Living Stereo cd's collection for less than £12 are excellent value. Four cd's - eight albums in total and not multi-channel, obviously, although some of the Living Stereo are sacd. Sound quality really top notch and has the best performance of the Pines and Fountains of Rome I've ever heard. Hard to believe most of these recordings were made in the 1950's. The dynamic range is breathtaking.
Tchaikovsky, Erich Kunzel, Cincinnati Pops Orchestra - Tchaikovsky 1812 Overture (New DSD Recording)View credits, reviews, tracks and shop for the 2001 SACD release of "Tchaikovsky 1812 Overture (New DSD Recording)" on Discogs.www.discogs.com
For older recordings check out RCA living stereo releases
EDIT: There was a bigger set of Vol 1 and Vol 2 available but not sure if they still are.