# urpmq --source win32-codecs
Just checked and the file is downloadable. What source did you use for plf-nonfree? Check in /etc/urpmi/urpmi.cfg
You may need to do do a urpmi.removemedia plf-nonfree and urpmi.removemedia plf-free and then add working plf mirrors. If you set up urpmi sources some time ago, note that plf split their packages into plf-free and plf-nonfree recently so you'll need to remove the old plf source and add the new ones.