Susan - the Bonus pack for Windows Media has Powertoys for the XP media player which includes an Export to Excel function (from where you should be able to do anything with it). I can't see the powertoys separately but the Bonus Pack download is on MS site at: Windows Media Bonus Pack for Windows XP. There are links there to the details of the Powertoys and how it exports the playlist file (.wpl) to Excel. (The full download is about 18Mb. I haven't used this so I can't offer any experience).

Alternatively you could try processing the .wpl files yourself - they're just text files with lines like:

            <media src="C:\Documents and Settings\User\My Documents\My Music\beck.asx" tid="{59FEF2B8-53E0-43A6-AB56-CEA078D0960A}"/>

for the track. You could use a DOS batch file with Find to extract these lines from all your .wpl files.

Mick

(I hope you're using XP after all that!)