The consumer audio CDRs and CDRWs are still available around the place, as the standalone CD-recorders like Teacs/Marantz/Yamaha etc will only work with them. A few players could be hacked to use normal CDRs, but it wasn't advisable as the test area for setting laser level was not synced properly to the plain CDR.
CD recorders (standalone HiFi units) existed for decades alongside CD writers in PCs.
I have 2 SONY COMPACT DISC RECORDER RCD-W500C units, one of which is still in its unopened original box.
They can only make around 800 CDRs (give or take) before you have to replace the parts in the recorder (or have another new one handy)
There is something to be said for the archival quality of the Taiyo Yuden/JVC CDR's now made by CMC Pro (Taiwan).
I just had my 9.5 mm film reels from 1929 of my grandparents (in the Alps of Austria) snow skiing wedding digitized.
And many other films of my mother, after she was born in Salzburg, Austria. And of many other things in our family up to 1965 (which includes my mother, father, myself and many other friends & family traveling in the US, traveling to Salzburg by plane with my mother to see my grandparents when I was 2 &1/2 (my grandfather died of cancer 5 days after we arrived but by then the film of my mother & I arriving at the airport (taken by a friend of my grandfathers had been developed & he had seen us both in person & our arrival via the projector.
There is also audio from tapes that I need to digitize, including reels of the conversations in the Houston Control center for the 1st lunar landing.
& I have 78 records from my American Grandmother that she bought right after my father was born.
There is so much history that a number of people have of our own families. Many in my family were musicians or local radio personalities & I have reel to reels & cassettes of them that I am digitizing to archival CD's, which can then be done to other formats (thumb drives, SSD's, hard drives, etc.
But having the archival CD's promises a way to adjust to future formats while storing what one haves for long term.
Yes, the audio & music availability of 16 bit & greater fidelity is great, but some people have the old stuff from within their families that they want to bring to the modern formats while keeping them in an archival format that will have them available for future changes. And for audio things, an archival CDR works very well.