@CarolA,
I have to admit I do.
While cleaning out all the old computers, I took out cables, cords, hard drives and other things I thought I could use. This one computer I had went all the way back to 1985; I took out its 5 1/2 inch drive and put it away
While building my computer in 2007, with a Core 2 Duo,4 GB Ram , 3 500 GB HD, Builtin USB Memory Slots, a trusty 3.5 inch drive, 2 DVD Writers/Readers and a CD Rom I use just for playing CDs, I had a spare 5 1/2 slot left.
As a joke, I recovered my old 5 1/2 disk drive and put it in. And it works perfectly!
If I ever get another internal drive, I'll replace it, but for now, I can read 5 1/2 disks!