alt Hacker NewsEarly CDs were labeled as to the processes used, a 3 letter code As and Ds, so:
AAD == Analog recording, Analog mastering, Digital media
ADD == Analog recording, Digitally re-mastered, Digital Media
DDD == Digital recording, Digitally re-mastered, Digital Media
This is known as a SPARS Code: https://en.wikipedia.org/wiki/SPARS_code
Your dad's friends should have imported from Japan --- they were big on Jazz, and a lot of my Jazz CDs have spines labeled in Japanese on one side and English on the other.
Replies
BoingBoomTschak • today at 5:08 PM
Why did you write "re-mastered" instead of simply "mastered" for ADD/DDD?
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Late 80s or early 90s there was also a DAD type, which often sounded really good.
From that Wiki link-
In practice, DAD was very rare, as many companies (especially the well-known classical music labels) used digital tape recorders (which were not prohibitively more expensive than analog tape recorders) during the editing or mixing stage.