Thanks for all of your help guys, but when I turned the computer on again this morning the computer was recognizing my D drive and the tray opened without any problems.

crono, we tried to open the disc tray by inserting a paperclip into that little hole and we could feel something being moved, but the tray still didn't move. We didn't actually try to pull it out manually at the same time though so maybe we should have tried that.

I guess maybe it was the CD that was left inside that must have been causing the problem. It's new though and it doesn't appear to be damaged, but I guess that's what I get for listening to <i>Radiohead</i>.