East German label
Label Code: LC 0549 / LC 00549
ETERNA, founded February 3rd, 1947 in Germany. After 1949, it was the German Democratic Republic's foremost label for classical music, political songs, folk, some jazz and religious recordings by LIED DER ZEIT GmbH, which is the predecessor of VEB Deutsche Schallplatten Berlin resp. Deutsche Schallplatten Berlin.
This label is essentially defunct; however, reissues usually appear on Berlin Classics.
According to current official GVL information, the label is now owned by Edel Germany GmbH.
List of sister labels:
AMIGA
AURORA (2)
LIED DER ZEIT
LITERA
NOVA
SCHOLA

The release year can usually be recognized from the last two figures of AG 511/1/xx on the cover. It's the legal printing license for the sleeve.

Items with catalog numbers like [x x0 xxx] are mono-releases, while catalogue numbers like [x x5 xxx] or [x x6 xxx] indicate stereo sound. This applies to all pre-1991 releases on the Deutsche Schallplatten Berlin sublabels.

For Eterna records of the 1983-1990 area the last one or two letters of the runout code encode certain properties of the record. The following codes are documented: "C" stands for "copper cut" (documented as "Kupferschnitt", presumably similar to DMM), "U" stands for UC (Universal Compatible) compander usage, and "CU" stands for both combined. "DU" is also used on later records, apparently combining DMM with UC.