There are a number of third-party apps that will convert a DVD to an iPad compatible format on your PC or Mac. Then you can sync them to your iPad using iTunes. Use the 'Search' button towards the top of Forum webpage; it's so obvious everyone misses it! Search for, say, 'DVD', and you'll lots of reviews, comments and hints. Once you've sync'd your DVD video to the iPad you can play it using the iPad's native video player.
Tim
Scotland