I read the bit where they said the source was 720p h264, but didn't see where they said it had been upconverted. And if you check the screenshot I posted above, this video is higher resolution than the version off the demo DVD.

Unfortunately, the compression has killed the quality - at least my download, which at 90MB is about a third of the size of the 480i DVD version. If you check the Yavin take off shot, all grain has gone from the sky and fine detail is missing from the forest trees.