My PC runs on a Win 98/XP partition. I also have a HP CD-writer (9100) which has given my good service for the last five years.
Now the writer has an audio outlet for headphones, which I use to listen to my music CDs...trouble is I can only hear the music when I'm on Win 98 and not on XP. For the latter I have to use the PC speakers.
Click on the properties of cd drive...Navigate to Hardware--->Click properties below and then Navigate to Properties and check the box named "ENABLE DIGITAL AUDIO FOR THIS CD-ROM DEVICE"..
This may solve ur problem)