The following review written by one of the Software Informer contributors applies to version 5.8
Acala DVD Ripper Professional is a powerful application that allows users to rip their DVD movies into different video files, including the most popular ones (AVI, MP4, MPEG, WMV, 3GP and FLV).
Thanks to this program you will be able to convert your DVD movies so that you can extract them to your cell phone, iPod, iPhone or other similar portable devices.
The application has a big list of advanced settings that can be configured. The program will allow you to configure your conversions by setting parameters such as audio bit rates, video codec, audio codec, video size, video frame rate, audio channels, video bit rate, audio sample, aspect ratio and audio volume. Moreover, the program allows you to record audio or video from any predefined point. You will be able to set the start time and the stop time.
By visiting the developer's website you can choose whether you want to download or buy this program's standard edition or the professional one. The professional is more expensive, but it comes with some better features. For example, the professional one will convert your files faster, it supports more formats, it comes with more advanced settings, it comes with a build-up DVD player to play any of your DVD movies and more.