Fstab for CDRW?

Knoppix can see my USB CDRW, but K3b won't write to the device. It doesn't even appear on the drop down menus. I suspect this is because my fstab is wrong. cdrom1 is the cdrw. My understanding is that ro in the fstab line refers to read only. How do I make it read write?

proc /proc proc defaults 0 0
pts /dev/pts devpts mode=0622 0 0
/dev/fd0 /mnt/auto/floppy auto user,noauto,exec,umask=000 0 0
/dev/cdrom /mnt/auto/cdrom auto user,noauto,exec,ro 0 0
/dev/cdrom1 /mnt/auto/cdrom1 auto users,noauto,exec,ro 0 0
# Added by KNOPPIX
/dev/sda4 /mnt/sda4 vfat noauto,users,exec,umask=000,uid=knoppix,gid=knoppi x 0 0
# Added by KNOPPIX
/dev/hda1 /mnt/hda1 ntfs noauto,users,exec,ro,uid=knoppix,gid=knoppix 0 0
# Added by KNOPPIX
/dev/hda5 /mnt/hda5 ext2 noauto,users,exec 0 0
# Added by KNOPPIX
/dev/hda6 none swap defaults 0 0
/dev/scd0 /mnt/auto/cdrom auto ro,noauto,user,exec 0 0

Have you configured k3b yet? Have a look at this thread.