Experienced photographers may not have often even seen this, so you shouldn't feel embarased about asking. Since cameras are only getting to the necessary sensitivities to shoot that fast in natural florescent lighting, we may start seeing this question regularly as these sorts of speeds move down into lower cost models. Nice catch on seeing the banding and realizing its moving in frame.
Assuming you have a flash available, you might try using it. With these high sensitivies, it will actually have a very long throw.