[corneliu]

Thank you both for your help.
I know that audio CDs and DVDs cannot be mounted.
I just want to pop a CD and be able to listen to the music.
I tried to use a command line cd player called cdcontrol and It refused to play unless I was root.
After I changed the owner of /cdrom, cdcontrol does not complain anymore. But there is no sound. The green light of the CD device is flashing like CD is being played but there is no sound.
The same thing happened before changing the owner of /cdrom when I started cdcontrol as root.
The sound card seems to be configured properly.