So following is the detailed guide about how to rip DVD to Sony Ericsson Xperia Arc S- watch/play DVD on Sony Ericsson Xperia Arc S. Please take through it.
(brorsoft.com/how-to/watch-play-dvd-on-sony-ericsson-xperia-arc-s.html)

Step 1: Import DVD movie to the best DVD to Xperia Arc S Converter. Free download Brorsoft DVD Ripper( brorsoft.com/dvd-ripper/index.html) and launch it as the best DVD to Xperia Arc S Converter. And then click the button like a disc to add DVD to the best DVD to Xperia Arc S Converter.
Tip: You can freely select the subtitles and audio tracks that you want. Plus, it’s available for you to show the forced subtitles as you need by checking the “Only show forced subtitles” box.

Step 2: Select an output format for Sony Ericsson Xperia Arc S and set the output folder.
Click on the dropdown menu of “Format” and then move you pointer to “Common Video”, under the sublist, “H.264 Video(*.mp4)”, “MPEG-4 Movie(*.mp4)”, are compatible with Sony Ericsson Xperia Arc S.

Step 3: Click “Settings” icon to adjust audio and video parameters.
Click the “Settings” icon and you will go into a new interface named “Profile Settings”. You can adjust codec, bit rate, frame rate, sample rate and audio channel in the interface according to your needs and optimize the output file quality before converting/ripping DVD to Sony Ericsson Xperia Arc S.
Note: Please remember the higher bitrate, the larger file size while the better video quality. The Xperia arc s does not like video file sizes over 2GB, so please male sure that the file size is kept under 2GB.

Step 4: Start converting DVD to H.264 MP4 for Sony Ericsson Xperia Arc S.
Click the “Convert” button, and it will rip DVD to Sony Ericsson Xperia Arc S immediately. You can find the converting process in the “Conversion” interface. And the conversion task will be finished in a short time due to its adopted NVIDIA CUDA technology.

After the DVD to Sony Ericsson Xperia Arc S conversion, you will be able to get the output files for Xperia Arc S via clicking on “Open” button effortlessly. Afterward, you can play/watch DVD movies on Sony Ericsson Xperia Arc S with high quality at ease.