/dev/scd0 /mnt/cdrw noauto,users 0 0
/dev/hdd /mnt/cdrom noauto,users 0 0
/dev/hdX /mnt/dvd noauto,users 0 0
Obviously the /dev/hdX depends on which channel your DVD is on and whether it is master or slave... the naming convention stays the same for add-in IDE cards.
The reason your cdrw is /dev/scd0 and not /dev/hdc is because it should be using ide-scsi emulation in order to function as a burner under Linux properly. If you're not done this, then edit your bootloader config file (/etc/lilo.conf or /etc/grub.conf) and add hdc=ide-scsi
to the append section (kernel parameters).
Hope this helps.
Thanks, Chup. Editted appropriately.