[QUOTE=310nd34d0;2688743]Are CD-R and CD Digital Audio different types of media?[/QUOTE] Yes and no… let me explain.
You can burn a CD-R in data format putting anything on it, and then you can read the content in a CD, DVD or Blu-ray drive. For this purpose burning at 24x or 32x in a desktop drive usually gives the optimal result.
You can also burn a CD-R in CD-DA (CD Digital Audio) format, which is the same format as music CDs and can be played in standalone CD players. For this purpose it is usually optimal to burn at 16x in desktop drives, which burns at a constant linear velocity (CLV) and produces the lowest possible jitter. Low jitter can be important in many standalone CD players, but usually isn’t that important for CD/DVD/BD drives in computers.
I have two types of CD-R’s from Sony but one is labeled ‘CD-R Audio’ with a darker green almost blue dye max write speed of 16x and the other just labeled ‘CD-R’ with lighter greenish dye max write speed 48x.
There are also some standalone CD audio recorders, which for licensing purposes require CD-R Audio media that is marked specially for use in these recorders to indicate that a copying fee has been paid on the media. Such media is not required when burning audio in a computer drive, but can be used in such drives.