rip dvd and mount iso dvd in ubuntu

to rip
dd if=/dev/sr0 of=thecorrs.iso bs=1024
to mount :
sudo mount -o loop -t iso9660 /wherever/iso/image/is/image.iso /media/iso/
to umount :
sudo umount /media/iso

*force umount
umount -f -l /mnt/cdrom