I recently received a higher quality version of the IMAX Sonic Anthem – Celebrating 1000 Theatres. This version has a video bit rate of 40 Mbps compared to 3.4 Mbps of the earlier one on the site. In addition the new file has a DTS-HD Master Audio 5.1 track instead of a lossy AC3 5.1 like the original upload. You can get the new version at the IMAX Pre-Show Trailers Page. Thanks Noah!