C00D11CD: Unknown error
Windows Media Player encountered an unknown error. This can occur when
another program or operating system component encounters a problem but does
not communicate the nature of the problem to Windows Media Player.
Because this generic message can be displayed in a wide variety of
circumstances, there is no single solution. The below website may be of some
help in what you
are trying to do, go here:
wmplugins.com - Playlist Copier
http://www.wmplugins.com/ItemDetail.aspx?ItemID=374