I have the strange trouble. There are .mp3 and .ogg files in the folder of web application in my server (IIS7.5, Windows Server 2008 R2). Web application has flash player. It can play .mp3 only, but it don't play .ogg-files. Same web application in other server works fine. Have anybody idea? Thanks.
Add the OGG MIME type in your web.config. Something like: