When most people down convert to DivX, not only do they down-size the image, but they use a much lower bitrate like 1.5Mbps (+/- 0.5Mbps). Granted DivX is better at storing video at lower bandwidths ...
As noted earlier, Crunch also offers to convert a variety of other formats, including DivX and MPEG-2. For users who have already ripped their DVD collections to a format not supported by the Apple TV ...