Video compression technology was developed because of the need to send video signals through available transmission paths with limited bandwidth capacities. Uncompressed Standard Definition (SD) digital video is typically encoded at 270 Mbps while uncompressed High Definition (HD) video is at 1.5Gbps. Terrestrial TV channel can only handle around 19 Mbps while typical satellite TV channel is usually available at 3 Mbps. DSL connection at home in most countries is offered at 2 Mbps while typical office LAN networks have capacities of either 10 Mbps or 100 Mbps. Take note that it is impossible to fit 1.5 Gbps or even 270 Mbps signal data streams in any of these transmission paths!