You are referring ot the way the CD was recorded, you can record a CD analog, well not the CD the music on it, in an analog way or digital since the beginning, that is what the ADD, DDD, AAD means: analog analog, digital........analog, digital, digital....digital, digital, digital....that means: the recording, the mixing, and the cd recording IIRC or latest transfer, it can't be AAA for sure, if is a CD....as the latest has to be a Digital one....