You don't need to mount audio CDs to play them. In fact, I don't think there is any way to mount them. Just use a tool like workbone that comes with Slackware, or any other CD player. You may have to set the device that contains your CDROM (like /dev/hdc) to 666 permissions, but it depends on the player, I think. Like I said, no need to mount audio CDs. Hope that helps.
