Several things.
I regularly import audio CDs, lossless.
Somewhat less often, I burn audio CDs, for distribution with résumés and for other purposes.
I own DVDs, and sometimes watch them. Sometimes I watch DVDs at friends' houses.
And more.
I use it less often now than in years past, but it still gets used on a fairly regular basis. A new (to me) CD is in the mail to me. I'll import it as soon as it arrives.
I'm a bit frustrated, in that it stopped reading CD-ROMS earlier this year. I started a thread asking for help about this:
My MBP 9,2 with built-in Superdrive doesn't seem to be recognizing CD-ROMs. I insert them, I can hear the Superdrive spin them, but there's nothing in Finder, nothing in Desktop, etc. It used to read them for many years. This may be the first time I've tried to read a CD-ROM since updating to...
forums.macrumors.com
but didn't find a solution. Because of COVID, I haven't wanted to go to an Apple store, even if they'll look at a laptop this old, and a local independent repair guy retired, I think.
I plan to get a new computer soon, now that the M1 Pro-based laptops are out. I can really use the higher horsepower. But I'll keep this one, at least for the time being. I guess I'll buy an optical drive for the new one, although it'll be a PITA to have to carry it around.