OpenSUSE Install :: How To Browse 11.3 CD - Block Device Write Protected

I can browse the iso image easily enough with a loopback mount, but when it comes to mounting the actual CD (which I did first), I get:

Code:
$ sudo mount -t udf,iso9660 /dev/dvd /mnt/dvd
mount: block device /dev/dvd is write-protected, mounting read-only
mount: wrong fs type, bad option, bad superblock on /dev/dvd,
missing codepage or other error
In some cases useful info is found in syslog - try
dmesg | tail or so
/var/log/messages isn't very helpful, either:

Code:
Jul 15 15:15:56 bkorb-dt kernel: attempt to access beyond end of device
Jul 15 15:15:56 bkorb-dt kernel: sr0: rw=0, want=68, limit=4
Jul 15 15:15:56 bkorb-dt kernel: isofs_fill_super: bread failed, dev=sr0, iso_blknum=16, block=16
$ md5sum openSUSE-11.3-DVD-x86_64.iso
adf5d2a0a03c1e3aaf102fd6a4771b87 openSUSE-11.3-DVD-x86_64.iso

I burned it with K3B and it gets the same result trying to mount it. K3B seems to know that the image is an iso9660 and is able to display the various 9660 id fields just fine. It just won't mount.