Music No Longer Recognizes Mixed CD-Rs It Just Burned

I'm old school, so I burn mixed cds for my car. In the past when I would make a mix, I could throw the thing in my computer's drive ages later and iTunes/Music would still recognize the mix it burned.

Now, immediately after the burn finishes, the finished product *still in the computer* has no information whatsoever. Just Track 1 through whatever. No artist or album or anything. The playlist that the disc was burned from is still right there in Music. What gives?