Nissan Micra 2006 CD Changer Problem?

Hi
AT first the changer would not eject one disc. I have ejected all the remaining discs with no problems. I could hear it trying to eject this one but it would not. No error codes now as it states there are no Cds loaded. I know this is not true, it won't load any new cds either. Any help would be appreciated.
Thanks