What is the brand/model of your CDROM?
if its like the ordinary one you should see a hole small one in its from panel, that is the manual ejector. to perform it:
1. get a paper clip large one. straight it and remove its vinyl coating. make sure that its is strong enough to push some mechanical gear inside your CDROM.
2. slowly shoot it in the hole.
3. for about 2 inc you will reach its "manual ejector" slowly push it while holding the eject button. computer should be powered on.
4. It will open, but since your think you got 2 discs in there you may need to use some force to eject it.
I hope this helps.