If the ipad is jailbroken you could install the TVOut2 app allowing everything on the iPad screen to be displayed on an external device. You then could get a vga or rca connector from the apple store. Connect it to something and record it or if you have a PC card that allows that type of input you can record it on the PC like any video input.
OR
Display Recorder from Cydia, 4.99$, register avi in high quality of what you see in your device.