It's illegal to copy commercial movies (in the US at least) because they use
CSS encryption. By-passing this type of DRM became illegal when the
DMCA came into effect.
So what does all of that mean?
1) It's illegal to break/by-pass the encryption on the DVD if you live in the US (and probably other places in the world as well).
2) It's illegal to distribute a device/tool/software that allows you to by-pass such encryption in the US.
3) You can probably find what you need by spending 2 minutes searching at google.com