I enjoy tried dvd decrypter and I own found it probably the easiest to use however It cannot verbs the movies from PowerDVD format to Quicktime!
Answers: Many those use Handbrake for free.You can query it contained by google.
http://www.goolge.com
I use iskysoft DVD Ripper .Thought it is not free.$39
I chose it.It works economically and it is uncomplicated to use.iSkysoft DVD Ripper can rip DVD to a wide-ranging miscellany of video files and convert DVD audio to different audio files. The supported video formats include MP4, WMV, AVI, MOV, RM, M4V, 3GP, MPG, MPEG, FLV, and VOB; and the supported audio files are MP3, WMA, M4A, AAC, AC3, and ASF etc. The output video and audio files can be without blemish played on most portable players such as iPhone, iPod, Apple TV, Zune, PSP, Xbox 360, PS3, iRiver, Creative Zen, Archos, PMP, Smart Phone, Pocket PC, PDA, cell phone, MP4 Player, MP3 player, and several other video and audio players.
http://www.iskysoft.com/dvd-ripper-windo...
I don't know whether it would assist or not. But you can enjoy a try by nidesoft products. You can budge its site to see. Maybe your problem can be solved. There are frequent tips you can benefit from. Well, the site is
http://www.nidesoft.com