WMV in Couch Surfer

Browsing through the Forum i´ve learned that Flash doesn´t work in Couchsurfer Pro. Now i have a website not in Flash but in HTML (http://www.zdf.de/ZDFmediathek/beitrag/video/257404/heute-100SEC?flash=off). There i´ve got the choice to watch movies in Windows Media oder Quicktime. But none of the formats work although i´ve got Flip4mac and Quicktime Plugins installed…