I think i might be able to solve that. I think i have to increase the buffer size, and change some things so that OpenAL stops complaining when the buffer is empty. Maybe it's a good idea to stop the music temporarly when there is dangerously less data left in the buffer

After some googling i found out that Tutorial 9 doesn't work because AL_EXT_Vorbis is deprecated.
Take a look at this thread:

http://opensource.creative.com/piper...ay/010411.html