Ok, I got it to unmount using umount /dev/svd1 .

The DeskTop shows it still mounted with the little green arrow,
but unmount was unavailable in properties.
It was unmounted..

I found out how to view files and copy them, after mounting from terminal with

mount -t iso9660 /dev/scd1 /cdrom -o ro

just click on DeskTop DVD-ROM Icon.

Now if I could just get the DeskTop DVD-ROM Icon to connect to DVD-ROM Drive. I suspect it is an Root problem.

Thanks ...