WPL Playlist and Fuze

Created a playlist with Windows Media Player 11, the playlist has a .wpl extension. The tunes in the playlist sync’d with the Fuze individually, not as a playlist. When I tried to drag the playlist into the Fuse, I got…

“The file xxx.wpl may be copied to the device for storage or transport only. It is not supported for use on the device itself. If possible, use a media program that can convert the file before copying it.”

Why would Fuze not accept wpl format, and what can I do to fix it? The SD media converter page has “how to” videos for converting vids and pics, but not mp3’s in a wpl format.