Seacue,
Here's some words of wisdom from a PC maintenance article:
"Tray won't eject.
Here's a rule to remember: Never force a tray or caddy into a CD-ROM drive after the computer has been shut down.
On many CD-ROM drives, the head carriage assembly (the device that holds the drive's laser) isn't locked in place when the computer is turned off. Consequently, when the tray or caddy is forced into the drive, the head carriage assembly is knocked out of whack.
Among the many negative effects this has on your drive is that it may prevent the drive from ejecting the tray or caddy. The drive also won't be able to read any CD-ROMs. The only solution to this problem is to send the drive to the drive manufacturer for service."
Assuming it's not a software issue - drive locked by an application - then it looks like a hardware fault, and it looks like the drive is f

ed
SD