The only method to record iPad action as a video (that I know of) is to use an AirPlay enabler app on your computer. I use Reflector, which lets me mirror the iPad's screen to the computer. There is another one out there, but I can't remember the name. Both of them offer a record feature, so you can make a video.
I'm not sure how well recording works. I haven't had a reason to try it out.