They explain, in simple terms, why all HDTV is not the same. While the only qualification necessary to be considered ‘high-definition’ is a resolution of 720p, 1080i, or 1080p, the standards don’t say anything about the level of compression. So while a 54Mbps 1080p Blu-ray data stream and a 4Mbps 1080p VUDU data stream are both technically high-definition, there is quite a bit more data building the Blu-ray image – and hence the viewer sees a better picture. And the same goes for HDTV channels, compression varies channel to channel, and even program to program on the same channel. The article is worth checking out if you’ve wondered why some HD programs look better than others.
Picked up from EngadgetHD.
