CDs lose the CDDA label if they don't comply to the Red Book standard. This was done in the dark years ~2002-2004 a lot when the media right exploitation indust

CDs lose the CDDA label if they don't comply to the Red Book standard. This was done in the dark years ~2002-2004 a lot when the media right exploitation industry tried to "protect their market". In Germany (only?) people started calling them Un-CDs.