Mount Problems - No medium found

[sajsan at vsnl.net]

Hi All,

When I try to mount a DATA CD by using 

mount /dev/cdrom /mnt/cdrom -t iso9660

I get

mount: block device /dev/hdb is write-protected, mounting read-only
mount: No medium found

I've googled and tried many different things and still nothing seems to work.  I am close to going crazy.

I am running RH 9 (Kernel Version - 2.4.20-31.9)
128 MB RAM
40 GB HDD

My /etc/fstab looks like this

LABEL=/ / ext3 defaults 1 1
LABEL=/boot /boot ext3 defaults 1 2
none /dev/pts devpts gid=5,mode=620 0 0
none /proc proc defaults 0 0
none /dev/shm tmpfs defaults 0 0
/dev/hda3 swap swap defaults 0 0
/dev/sda1 /mnt/usbstick vfat user,noauto,unmask=0 0 0
/dev/hdb /mnt/cdrom udf,iso9660 noauto,owner,kudzu,ro 0 0
/dev/fd0 /mnt/floppy auto noauto,owner,kudzu 0 0

Here is my output of dmesg | grep hdb

ide0: BM-DMA at 0xa800-0xa807, BIOS settings: hdaMA, hdbMA
hdb: SAMSUNG CD-ROM SC-152C, ATAPI CD/DVD-ROM drive
hdb: attached ide-cdrom driver.
hdb: ATAPI 52X CD-ROM drive, 128kB Cache, DMA

Please help.

Thanks
Vaneeri