If your dvd software is trying to use /dev/dvd then yes linking /dev/dvd to your dvd drive should do it. Conversely you could simply tell your dvd software to use /dev/cdrom.
If that doesn't get it for you post with some system details please.
/dev/BOOT /boot ext3 noauto,noatime $/dev/ROOT / ext3 noatime $/dev/SWAP none swap sw $/dev/cdroms/cdrom0 /mnt/cdrom iso9660 noauto,ro $proc /proc proc defaults $
Is this what your fstab actually looks like? It's kind of a mess.