Digiarty has released MacX DVD Ripper Pro v4.3.0 on August 20, 2013.
Download it to have a try: http://www.macxdvd.com/download/macx-dvd-ripper-pro.dmg
* Reserved AC3 audio track while backing up DVD to MKV.
* Resolved an error when adding video to iTunes after conversion.
* Improved configuration profiles to speed up DVD ripping process.
* Fixed the problem when loading some DVDs
* Fixed some minor bugs
Know more about this product here: http://www.macxdvd.com/mac-dvd-ripper-pro/