Can't eject CD-R after viewing it in a folder window

I don't know whether my question belongs with this group or a Windows XP =
group, but here goes.

I'm using Win XP Pro. I want to see the contents of a data CD that I =
have mastered using Roxio Easy CD Creator 5. I put it in the CD =
reader-writer (Samsung CD-R SW-224B) and wait a few seconds. An Autoplay =
dialog box appears onscreen with a progress bar. A folder window then =
opens showing the contents of the disc. Everything looks good, and I can =
see and open any file or folder I want. I'm done, so I close the folder =
window. I want to remove the CD so I press the Eject button on the CD =
tray. Nothing happens. I press the button repeatedly. Nothing happens. I =
open a My Computer window. I right-click on the CD icon and click on =
Eject. Nothing happens. I repeat this many times. Nothing happens! In =
frustration I reboot the CD and press the Eject button. The CD tray =
opens and I can now remove the CD. This whole scenario is repeatable. =
Bottom line: I can never get a CD out unless I reboot the computer.=20

Can anyone tell me why this is happening, and how to get the CD player =
to release its hold on a CD without having to reboot the PC? Thank you.

Frank