For What It Is Worth -
I had a CD locked in the D drive and it suddenly just rattled. I couldn't get it to play and I couldn't get the tray to open. I was going NUTS. Then, searching for an answer, I found a 15 year old post that said to stick a straightened paperclip into the small hole in the front.
I remembered about that soon as I read it, but I had forgotten! Look for yourself on a Windows PC...
I didn't solve the "failure to play", but at least it got the CD out, LOL!
But when I got the CD out and tried it in the 2 tray it played fine. I have to laugh that I'm keeping a Windows 95 (offline) working. But I suspect I'll have to find a repair shop soon.