CD/DVD ICON GHOST 10.4 cd tray...


hi i wondered if anyone could help me... im runnin 10.4.4, when i put a cd or dvd in teh trya, and use it via a game or watching a movie, i cnnot eject it afterwards. i try to eject the cd/dvd and the icon will disappear, but the cd tray will not open. and i try to press eject again and tha cd tray will not respond.
then.. if i try to open a program tath program freezes, doesnt matter which program its always the same. so to switch cd/dvds i have to reboot.