cd / dvd not mounted ?

have read about this problem , I should change mounting point , or something with grub but my acces is denied
when i try this
output of harry@harry-System-Product-Name:~$ sudo lshw -C disk
[sudo] password for harry:
  *-cdrom
       description: DVD writer
       product: DVD RW DW-U18A
       vendor: SONY
       physical id: 0.1.0
       bus info: scsi@0:0.1.0
       logical name: /dev/cdrom
       logical name: /dev/cdrw
       logical name: /dev/dvd
       logical name: /dev/dvdrw
       logical name: /dev/scd0
       logical name: /dev/sr0
       version: UYS3
       capabilities: removable audio cd-r cd-rw dvd dvd-r
       configuration: ansiversion=5 status=ready
     *-medium
          physical id: 0
          logical name: /dev/cdrom
  *-disk
       description: ATA Disk
       product: WDC WD800JD-08LS
       vendor: Western Digital
       physical id: 0.0.0
       bus info: scsi@2:0.0.0
       logical name: /dev/sda
       version: 07.0
       serial: WD-WMAM9A674801
       size: 74GiB (80GB)
       capabilities: partitioned partitioned:dos
       configuration: ansiversion=5 signature=000e6eef
harry@harry-System-Product-Name:~$ sudo cat /etc/fstab |grep scd0
harry@harry-System-Product-Name:~$