Considering that Transfomers has probably sold about as many DVDs on its own as the all time BR and HD DVD sales combined, I'd say that it's still far too early to make any conclusions....
Yes, most people hold this view. In general, both HD-DVD forum and BDA have fared badly in promoting HD. The names carry no meaning/value to most of the consumers, but they still keep harping their names all the time.
What Sony could do is to introduce another reason for people to buy PS3 as a DVD/Blu-ray player, if they are not afraid of losing more money initially. Since PS Eye can see better than regular webcams in the dark, I wonder if it's possible to do a remote-less PS Eye UI (e.g., like Apple's "Cover Flow" to forward, rewind, playback movies and select scenes).
Then pimp Blu-ray to future proof the PS3 player, and integrate with the new UI better (than regular DVDs). Everyone whether they own HDTV or not, should understand the value better.
Moving forward, I suspect MS and Toshiba will likely take the interactivity route further too.
So YTD is 2 to 1 with LTD being about 3 to 2 and current being almost 1:1.
Is it true Nielsen doesn't cover Walmart? Seems odd since Walmart isn't insignificant. I heard on the radio that while Britney Spears was herald as #1 with 300,000 copies sold last week, Walmart reported that the new Eagles album sold close to 800,000 copies last week and is sold only through Walmart and associated stores.
Walmart in general does not provide/sell sales data. So I think it's true. The weekly numbers changes wildly these days. It was 7-9:1 (not very sure now) one to two weeks before Transformer release. This week and may be next, the Blu-ray number will most likely rise again due to Ratatouille.