The S&V test disk does have a chapter for DTS-ES 6-1 speaker ID. I think I'm seeing what others are. With rear surround there is no LFE, with no rear surround you get LFE. Noticed that once you turn rear surround off it won't come back on until the chapter ends on the DVD. Once the chapter ends the initial flag is DTS then switches to DTS-ES with the rear surround operational but no LFE until you turn rear surround off.