I have a RHEL 5 GA system installed, in which I created two virtual Clients, one
WinXP, and Win2003.  After the clients have been installed, I use the following
procedure to read/mount CDs:

1- Insert CD to be used on CD-ROM drive.
2- Click the mouse on the virtual client's window.
3- Press ALT-CTRL-2 to go to HVMXen 
4. Type:  change hdc /dev/cdrom
5. Go back to original window by typing ALT-CTRL-1

At this point Windows has "mounted" the CD, and it is available to the user.  On
Windows XP, the CD icon displays the CD label, meaning the CD is mounted (normal
Windows behavior).  When I do an "Eject" on the CD, the CD label goes back to
"CD-ROM Drive" (default label).  

On Windows 2003, using the same procedure, the CD is mounted/read, but the label
doesn't change, stays at "CD-ROM Drive", making users think that the CD did not
mount.  This is not normal behavior.