You are purchasing MP3 Digital Downloads in this store and Not physical CDs. If you want actual CDs, CLICK HERE.
(DD) stands for Digital Download!!
If you have an iphone and you are purchasing numerous mp3s, like an album,
then you need to download your purchase on your computer and
then add the audio files to your iphone or ipod or ipad.
That is because you will be receiving a zipped file and Apple doesn't allow
zipped files into your iphone, ipod or ipad.
Downloading multiple mp3s on an Android I'm told is ok as unzipping zipped files
does happen on Androids..