In the early days of HDTV the only consumer distribution format for HDTV was D-Theater®. In May of 2003 we brought out two versions of DVE in this format, one in 1080i and the other is 720p. Each had a run time of about two hours. The materials were MPEG-2 encoded. There was only one replication run of about 1,500 tapes for each format. The program was indexed so you could fast forward to particular sections of the program. The tape format had a pause capability that would allow individual test patterns to be on screen longer than they were on the tape. Test patterns we felt would be used a lot were included at the end of program in longer lengths, just in case a section of tape wore out while in the pause mode.