Its not illegal if you are gonna use it for you're self
best program is DVD decrypter its the best
DVDFab Express v2.9.5.2
DVDFab Express is an easy to use software for copying a DVD movie. Just insert the movie and a blank DVD then press Start. Your entire movie - including menus, trailers and special features - is copied to a single DVD with just one click.
Features:
Copy any DVD movie to one blank DVD disc.
Copy an entire DVD, including menus, trailers and special features.
Copy the main movie only, excluding unwanted audio and subtitles.
Copy DVD movie content from original DVD disc or from hard drive.
Copy full multi-channel audio (AC3 5.1, DTS).
Copy episodic/season DVD movies, TV series, etc.
Copy NTSC/PAL DVD movies.
Compress DVD-9 to a single DVD disc in near perfect quality.
Copy DVD-9 in 1:1 mode, and burn to double layer DVD-DL.
Remove all the restrictions of DVD (CSS, Region, RCE, Macrovision, UOPs, etc.)
Burns DVD movies to any blank DVD Disc (DVD /- R/RW).
Backup copy plays on any ordinary home DVD player.
Simple "One-click" interface.
http://www.afterdawn.com/software/video_software/dvd_rippers/DVDFab_Express.cfm