Re: Disc stuck in computer.
Jemflux, Pleased to see you managed to solve the problem.
On the front of most disc drives there is a small hole which can be used to release the mechanism and eject the disc.
Use a strong piece of wire,ie, a paper clip, thin needle, shove it into the hole gentley and you will feel the catch restrict your movement of the clip, press a little harder and the mechanism moves and releases the disc.
The problem can be caused by the software getting caught in a loop, the computer looks for files and places to write them to. If the file is missing or the disc has some small damage to it the the computer keeps going round in circles looking for the file or place to write to.
I dont know about a Mac, but with windows if you press Ctrl,Alt, delete together the 'Task master' opens and you can stop the program running.
Just a bit of knowledge for the future.