For DVD ripping/decrypting, especially the ones with the newer protection schemes, AnyDVD is my favorite (on-the-fly decryption program), used in conjunction with DVDShrink (DVDShrink's ripping engine is old and can't handle the newer DVD protection). An alternative to AnyDVD is DVDRegion+CSS Free.
A freeware alternative to AnyDVD is DVD43:
http://www.dvd43.com/
And DVDFab Decrypter (freeware):
http://www.dvdidle.com/free.htm
DVDDecrypter, SmartRipper can still be used to RIP the DVD with the other software running in the background to remove the disc protection. DVDDecrypter and SmartRipper are no longer being developed, so they choke on any of the newer disc, especially from Sony with the ARccOS protection.
AnyDVD:
http://www.slysoft.com/en/anydvd.html
DVDRegion+CSSFree:
http://www.dvdidle.com/dvd-region-free.htm