There are an increasing number of consumer/prosumer cameras on the market that boast True 1920x1080 resolution. But what does this actually accomplish? These cameras all use the HDV codec which limits the image to 1440x1080 due to mini-DV's 25Mb/s bandwidth. Are there any real gains to be had with a 1920x1080 sensor over a 1440x1080 one since the better sensor is being downsampled anyway?