This device claims that you can record HD content on a regular DVD for play back in a blue ray player. How is that possible. Is it cause of the encoding ( h.264). if so , why aren't all hd dvds compressed the same and put on "regular" dvds. I'd think that quality has to suffer, I',m confused. Also notice 1080i support but not 1080p.
It is possible because all that is needed of the player is the ability to decode the h.264 stream. The reason that we need HD DVDs and Blu-ray is because they can hold waaaaaaaaaay more information than regular DVDs. Using a dual layer DVD, you could probably get 20 minutes of HD video at a bit rate that is watchable. With a single layer Blu-ray, you could get an hour at a higher bit rate.