I'm one of those now I guess
I still have an old CD and tape player and recorder thing and old mixtapes. But I would really love a portable player again.
There are those tape to usb/mp3 converter things out there. But I would love to be able to convert in the other direction. mp3 to tape.
I could of course burn audio to CD and then use my old player/recorder for the cd->tape part. Or I could try to get a walkman with a 3.5mm line in and connect it to the PC.
It's not magic I just need a walkman now!