Layered Embedded Encoding – Compressing data in layers so that successive layers provide more information. In this scenario, a single stream of data might supply a range of compression, and in terms of video, a range of video resolution and picture quality. This is particularly useful for multicast where a single stream is sent out and people are connecting using different bandwidths. The lower bandwidth connection can take just the lower layers while the high-bandwidth connection can take all of the layers for the higher quality.