In the case it's 30 frames per second, the 1080p would be equivalent in quality to 1080i for all non-CRT HDTVs. CRT based HDTVs may have a slight reduction in flickering due to progressive scanning. However, I've never noticed any flickering on my projection HDTV CRT when watching 1080i material. DVDs are normally de-interlaced (480i at 24 fps), so the HD-DVD or Blu-ray movies would contain roughly 3 times as much data per movie minute than DVDs today (excluding sound). Quality-wise, the new generation should look at lot better. However, if the HD-DVD turns out to be compressed, it means it won't be a true 1080i of resolution because some of it will be averaged pixel values, right?
<Edit> I was just reading that the new 1080p TVs have 60 frames per second. I'm really still puzzled the output format of the new Blu-ray or HD-DVD players.
http://editorials.teamxbox.com/xbox/154 ... -1080p/p4/
The HD-DVD sounds like it will be cheaper to support by the disc manufacturing industry, but if Blu-ray can offer more features in the movie, it may be more attractive. I think the biggest factors are the big name movie availability and the player cost. One potential problem that we can imagine is if 50% of the consumers jump into one camp, but that camp loses a couple years later, it will be bad for them. Movie studies probably prefer not to support both, right? What we need to help decide the platform is a huge OEM willing to take the plunge into a very cost competitive high def disc player. This would begin the trend of early-adopting consumers into one camp, and things would trend that way. Eventually, the momentum for that camp would erode efforts for the other side. Let's hope it happens fairly quickly. It seems like most people polled in this forum prefer Blu-ray. I've only studied some superficial differences, but that's the format that I would bet on at this point.