And this is from the opening paragraph of Harris's press release on the survey:
"Looking at the other devices for playing HD DVDs, 9% own a Sony PLAYSTATION®3 (which plays Blu-ray ) and 3% have the external HD DVD drive for the Xbox® 360 (which plays HD DVDs)."
Other devices for playing HD DVDs? So even Harris considers Blu-Ray as a subset of "HD DVD"?