Soundgarden – Echo Of Miles The Originals

If you can't find the full 3CD set this easier to find abridged version will do. It skips disc 2 (covers) and disc 3 (oddities), and removes 4 of the songs off disc 1 (Sub Pop Rock City, Toy Box, Kyle Petty Son Of Richard, and Exit Stonehenge), but personally I'm fine with having the full 3CD set as mp3s and the 1CD abridged version as my physical copy.
(ok I'm only saying that because I don't have 200 bucks for the low print run/high in demand 3CD version)

The edges seem to have been sanded off these masterings, they're more antiseptic than some of the originals -- the "Birth Ritual" of the Singles soundtrack, for example, sounds much more raucous (though more tinny, with less body) than the version on "Echo of Miles." Still, this is a lot cheaper than collecting the singles that feature these tracks, and they're still very good-sounding recordings. Casual Soundgarden fans will probably be okay without these songs, some of which (e.g. "Cold Bitch," "HIV Baby," and the totally extraneous 2012 invention "Live to Rise") sound like they were left off the records with good reason. However, many of the songs from Badmotorfinger onward are worth hearing. My favorites are "Kristi," "Black Rain," "Blind Dogs" and "She's a Politician."