The Cleaners From Venus' "Midnight Cleaners" is featured on the latest episode of Collector's Crossroads.

(Photo: courtesy of the artist)

"Private press" records -- independently financed and usually limited to a few hundred copies -- are some of the most sought after by collectors.

Though many fall into obscurity over time, curious crate diggers rediscover these long-lost gems, some of which fetch hundreds or even thousands of dollars per copy.

The latest episode of Collector's Crossroads featured a wide selection of these releases. Take a listen to the songs via the Spotify playlist below.

Collector's Crossroads airs on CPR's OpenAir Thursdays at 3 p.m., Saturdays at 6 p.m. and Sundays at 4 p.m.

Follow CPR's OpenAir on Spotify for more curated playlists.