i'v 2 speakers and had all channels turned up:
4 analog, 5 spdif and capture.
After I muted spdif ou, I could hear a sound.wav.
Thank you, that's a step in the right direction..
While I'm writing, a test with the CD-player did not succeed.
But a test with gxine (radio-station) gave a nice sound.
So it's no longer a SBlive problem, but a small CD-player problem.
Have to figure out how to handle a combo CD/DVD-drive.