1. Logon as root. If there is CD inside, remove the CD using umount command.
# umount /mycdrom
Additional note:
In this example, /mycdrom is the mount point directory for the CD-ROM drive.
2. Insert a CD and run following command to mount it.
# /usr/sbin/mount -rv cdrfs /dev/<cd-device-name> /mycdrom
3. Now, you can access the CD contents.
# cd /mycdrom # ls