MacTheRipper is a Mac OS X application that enables users to create a playable copy of the contents of a Video DVD by defeating the Content Scramble System. During this process it may optionally modify or disable the DVD region code or the User operation prohibition features of the copied data. The previous lack of an OS X equivalent to the PC software DVDShrink gave this standalone DVD ripper widespread popularity among Macintosh users.-from Wikipedia
Guide on how to rip DVDs for free with Mac The Ripper:
1. Download and isntall the freeware.
Click here to download the MacTheRipper.
2. Convert DVD movies on Mac
Launch the Mac application, then insert the DVD into your drive. and use MacTheRipper to rip the whole DVD to your hard drive.
Then, set the RCE options if applicable. Once you’ve selected the type of extraction and options you want, you can go back to the ‘Disc’ tab and click the ‘GO!’ button (or hit the ‘Enter’ or ‘Return’ key) to start the extraction.
3. Extract VOB video from DVD
After the extraction done, you can find a folder in the save location. The output files extracted by Mac The Ripper are saved as .VOB format.
However, if you have updated your Mac OSX to the Lion or Lion Mountain Lion, you will find that the Mac the Ripper can’t do nothing. So how to tackle it? You may need to get an application that can be well compatible with the higher Mac version. The Mac DVD Ripper Lion is such the kind.
More than the MacTheRipper, it can rip DVD disc to rich output file formats like AVI, MP4, MOV, MKV, etc. With its user-friendly presets, you can effortlessly enjoy optimal movies on your iOS devices and more. Now, you can use its trial version to experience of ripping DVD on Lion OSX.