The green light lights up and I can hear it trying to open...
If it’s trying to open get a very thin screwdriver and give it a slight outward nudge in any crevice you can find while pressing the button. The cd could also be misaligned and a very (careful) light shaking might help.
The problem is that the CD ROM in the drive is having read errors (dirty or scratched). You have to keep the drive from trying to autostart and computer from trying to read the ROM. So, basically disable autostart in Windows (find instruction on the web for your operating system flavor)and reboot in safe mode. Open my computer (when drive is not trying to read), right click on cd drive icon and select eject. Should work.