What I want is to convert my DVD disks to mp4 format for my Galaxy Tab 2 10.1, but I have lots of disks , don’t spend a long time on conversion. Do you have a converter can recommend which is able to convert several disks simultaneously while keep in a fast speed?

I will recommend Pavtube Blu-ray Video Converter Ultimate, as an old registered user, it performs well enough to satisfy my needs. It supports batch conversion facility, and you can load and convert 4 disks at the same time. Moreover, Pavtube recently adds AMD’s ATI Stream Technology that accelerates video processing, Pavtube software is about 6X faster than before.
http://www.blu-ray-dvd-converter.com/bl ... -ultimate/