I wasn't sure which forum to post this question in, so I've posted it here. It's that old codec problem with Sonic MyDVD - when I try to add windows media player files to make a dvd, I get the message "Could not make a thumbnail. Make sure you have the appropriate decoder installed. - 47010". Does anyone know which one I need? And do I have to uninstall codecs I already have before installing any new ones? Any help would be appreciated. Calum.