When playing DVDs with VLC media player, both video and audio pause several times per second
Try adjusting a few settings.
In the video tab of your settings, ensure that the following are checked
- Skip Frames
- Accelerated video output
- Use hardware YUV->RGB conversions.
Also, go to the "Inputs & Codecs" section and adjust the Caching level to one with higher latency.
If you still have problems, naturally head over to the VideoLAN forums and see what else they recommend.