You might want to keep this page bookmarked too:
http://forum.rpc1.org/viewtopic.php?t=32139
If you’re desperate to watch a foreign dvd on your notebook, install DVD Decrypter. Pop your dvd in and rip it to the hard drive with the RC / RCE protection removal options on. If your dvd player has file play capability, rip the dvd as files and then point the player to the .ifo file. If your dvd player can only play from a mounted drive, rip the dvd as an .iso image. Next, install daemon-tools, and then mount the .iso file. Point your dvd player to the virtual drive created by daemon and away you go.
http://www.dvddecrypter.com
http://www.daemon-tools.cc
It may not be a completely legal solution though, since you’re bypassing css as well as copying a protected work. Ripping takes time and hd space as well.