I cannot read data cd's from my cdrom drives. Audio cd's work, no problem, but whenever I load a data cd I just cannot access it.

I have an ide dvd writer and a scsi cd. My fstab (currently) looks like this:
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/etc/fstab: filesystem table.
#
# filesystem mountpoint type options dump pass
/dev/hda1 / ext3 defaults,errors=remount-ro 0 1

proc /proc proc defaults 0 0
#
# deur my uitgecomment 20050328
#
# /dev/fd0 /floppy vfat defaults,user,noauto,showexec,umask=022 0 0
usbdevfs /proc/bus/usb usbdevfs defaults 0 0
sysfs /sys sysfs defaults 0 0

# /dev/cdrom /cdrom iso9660 defaults,ro,user,noexec,noauto 0 0
# /dev/cdrom1 /cdrom1 iso9660 defaults,ro,user,noexec,noauto 0 0
# /dev/dvd /dvd iso9660 defaults,ro,user,noexec,noauto 0 0
# /dev/cdaudio /cdaudio iso9660 defaults,ro,user,noexec,noauto 0 0

/dev/cdrom /cdrom auto users,noauto,exec,ro 0 0
/dev/cdrom1 /cdrom1 auto users,noauto,exec,ro 0 0
#
/dev/sda1 none swap defaults 0 0
/dev/sda2 /mnt/sda2 reiserfs auto,users,exec 0 0
/dev/hdc1 /mnt/hdc1 reiserfs auto,users,exec 0 0
/dev/hdc2 /mnt/hdc2 reiserfs auto,users,exec 0 0
/dev/hdd1 /mnt/hdd1 reiserfs auto,users,exec 0 0
/dev/hdd2 /mnt/hdd2 reiserfs auto,users,exec 0 0
/dev/hda5 /var reiserfs auto,users,exec 0 0
/dev/hda6 /mnt/hda6 reiserfs auto,users,exec 0 0
/dev/hda7 /home reiserfs auto,users,exec 0 0
/dev/hda8 /mnt/hda8 reiserfs auto,users,exec 0 0
/dev/sdb /mnt/sdb auto noauto,users,exec 0 0
# /dev/cdrom1 /mnt/auto/cdrom1 auto users,noauto,exec,ro 0 0
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Since discovering the problem, I've fiddled with it a bit, but haven't been able to solve the problem. Can anybody suggest a solution?