[MacPerl] Changing CDs during a script.

[WESTMJ@ESVAX-MAIL.ES.DUPONT.COM]

Sorry if I missed something obvious, but how do I change CDs during a 
script?

I have a script that needs to process one CD after another.  I thought
I would just open and close the file on one CD, then put up a prompt to 
be responded to when the CD was changed, and then open and close the file 
on that CD, and so on.  

But I can't seem to get to  the desktop finder to eject the CD while the dialog
box is up, pausing the script.
 
What is the easy way to pause the script so that I can get to the desktop
and  eject the CD?

Thanks.

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