You file should look like this after editing as root:

Code:
#  /etc/fstab:  file system table
#
#file system mount point type options dump pass
/dev/hda5  /  ext3  defaults,errors=remount -ro 01
/dev/hda6  none swap sw   0   0
proc  /proc  proc  defaults   0   0
/dev/fd0  /floppy  vfat  defaults,user,noauto,noexc,umask=022   0   0
/dev/scd0  /dvd  iso9660  defaults,ro,user,noexec,noauto   0   0
/dev/scd1  /cdrom  iso9660  defaults,ro,user,noexec,noauto   0   0
#added by knoppix
/dev/hda7  /mnt/hda7  ext3  noauto,users,exec   0   0
Then you would still have to make the /dvd directory as root if it does not exist and everything should work. To check for the directory open a console window (clam shell icon on the taskbar) and ls -l /dvd if it says file does not exist then su enter type in your root password enter again then cd / and enter next mkdir dvd enter once again and the directory will have been created then make your shortcuts on the desktop. BTW what do you have on the /dev/hda7 partition?