Just CDs; those little plastic discs that young people have absolutely no use for, if they even own a device that would play one.
By comparison, Adele's 25 last year sold more downloaded copies on the first day of release in the United States alone than this Mozart CD sold.
These days, only old people buy CDs.
My younger son has figured out that if he buys the CD, he can get the download for free immediately then puts the CD away as a back up.
My other son doesn’t stream or buy CDs, he listens to FM radio.
Both are a couple of throwbacks.
Ouch!