Hello seitwaerts,welcome to Crossfire and SWAT community! You do have the right codec installed, but make sure it takes priority over other MP3 decoders (e.g. there is "MP3 Decoder DMO" in your list).In XP one can change priorities in Control Panel -> Sounds and Audio Devices -> Hardware -> Audio Codecs -> Properties, maybe you find something similar in Windows 7. Looking forward to your updates. - Wanderer -