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/