System.PlugIns.iSoundRender = crystalspace.sound.render.software
System.PlugIns.iSoundLoader.WAV = crystalspace.sound.loader.wav
System.PlugIns.iSoundLoader.OGG = crystalspace.sound.loader.ogg
System.PlugIns.iSoundLoader = crystalspace.sound.loader.multiplexer
You should have before each System.PlugIns a \";\"
I am not 100% sure about multiplexxer plugin, but if it doesn\'t work, remove the \";\" from that.