The latest MacX DVD Ripper Pro V5.7.0 (built on Dec 13, 2017) is available for free by courtesy of the developer's Christmas event. Just head over to the page below, input an email address to get the license code and setup file.
>>https://www.macxdvd.com/giveaway/giveaway.htm

Please note that the giveaway version does not support free update and the license key should be activated before Jan 10, 2018.