I wonder if that's even technically possible these days. Given the fact that the heads have to float on the moving air (or helium) produced by the spinning plat

I wonder if that's even technically possible these days. Given the fact that the heads have to float on the moving air (or helium) produced by the spinning platter, coupled with modern data densities probably making the float distance tolerance quite small, there might be a very narrow band of rotation speeds that the heads require to correctly operate.