Well a Blu-Ray machine has special technology that can make the DVD image into an HD-compatible image. But the image is not the full resolution.
HD DVDS are DVDs that can be played on high definition TV players. The regular DVD can be played on any TV and is not in the same definition as the HD DVDs.
No and HD DVDs have been permanently discontinued
No, due to technical differences, only a HD DVD drive can play HD DVDs.
No and HD DVDs have been permanently discontinued
No, it only plays standard DVDs.
Yes the PS3 will upgrade the DVDs to near HD quality.
Playstation 3 will play HD DVDs. You do not need an accessory to have the HD DVD work.
no
The better question would be - Do HD DVD's play on regular DVD players? The answer is yes. But consider this. Can you play watch a color movie on a black and white tv? Sure, but you'll only see it in black and white. The same is true of the HD DVD's. It's not whether or not they will play, it's whether or not the monitor can produce the proper output. To which the answer is 'No'.
Yes and if you have a HD TV they are upscaled to HD and look great. The PS3 also will play DVDs that you burn on Your Media Center computer of TV shows you recorded. It has played everything much better than in my Sony DVD/VCR combo player so that I no longer even consider using it to play DVDs. Of course it also Plays Blu Ray discs and the pictures look better than the 720P HD broadcast of the same movie.
No and HD DVDs are discontinued
No and HD DVDs have been permanently discontinued