Right, i dug the spare radio out and took some pictures. The CD is held in quite well into the CD drive

The first picture Shows the location of the face (TOP) torx screws T8



This picture shows the location of the bottom ones. One may be under some tape T8 again.



Once the four T8's are out start at the bottom to unclip it from the mounting frame.




When its half undone it will be like this.





This would be ideal time to unclip the red connector on the back of the face of the radio. As you can see in the picture it has little wings on to keep it in place



Then you can unclip the face off the top clips like a hinge. Then you can see the mounting face that holds the radio into the dash (This can be changed so you can convert a Focus radio like the one here into a Fiesta ST square face radio. I have done this with my old radio so the Fiesta now had DAB).
Now this plate has numbers on it. Number 6 is needs to be removed so you can remove the lid from the radio



Once that and the lid is removed you can see where the CD drive lives.



This sits on 4 dowels and lifts up. There is another ribbon on the left side that connects the CD drive to the circuit board below.

Now the problem is the CD in this radio is stuck in the drive as there is two arms that will not move out of the way. You can see them to the left of each of the plastic roller pins.



Ive had a good fiddle with the arms that i can see and they will not lower down
Even when you move the gears on the side of the CD drive.

Now you can have a fiddle with yours and see if you can get it to move or try and find a faulty one with a bad display and swap the CD drives.