4Videosoft DVD to AVI Converter for Mac is a commercial DVD ripper. You can use this app to convert your DVD movies into AVI video files, which you can play on your computer and on many other multimedia playback devices. AVI is not the only supported output format. You can also convert files into the DivX, XviD, MPEG-1, MPEG-2, H.264, WebM and WMV formats. There are conversion profiles for the Xbox 360, the Playstation Portable, the Playstation 3 and portable media devices. Moreover, you can create your own profiles and save them for later use.
Using this ripper couldn't really be any easier. You can load a DVD movie from a DVD disc or from a folder on your hard drive (in case you have used another ripper before). Once the movie is loaded, you will see a list of DVD titles. You can select the ones you want to convert and you can apply different profiles to them. This means that you don't need to convert every single title in your DVD to the same format. You can, though.
4Videosoft DVD to AVI Converter for Mac has a nice graphical user interface. It is easy to use and intuitive. There is a video player that lets you play your DVD titles before you convert them and a video editor that can be used to trim and crop the videos.