Originally posted by: Tiptup
Well, a BD is bigger in terms of storage space but not disc size. Otherwise, the read/write times have nothing to do with disc space. It has to do with the configuration of the data on the BD. I'm not sure, but I think that's the main reason why BDs couldn't be manufactured on existing DVD production machinery.
Originally posted by: lordjedi
But why even bother when VC-1 and AVC are superior? They could save space and make the extras in HD as well. Right now, on most releases, the movie is in hi-def while the extras are all in SD (generally 480p I believe).
I don't know. Maybe all they want to put on the disc is the movie. A lot of releases are like that on DVD right now.
Well, it seems to me that the studios are quite content to take the existing mpeg2 version and just throw it on a BD since they have the space. When they don't have the space, they redo it in VC-1 and put it on the HD-DVD.
Originally posted by: Tiptup
Originally posted by: lordjedi
Why would having a bigger disk give you a faster install or faster load times?
But why even bother when VC-1 and AVC are superior? They could save space and make the extras in HD as well. Right now, on most releases, the movie is in hi-def while the extras are all in SD (generally 480p I believe).
I don't know. Maybe all they want to put on the disc is the movie. A lot of releases are like that on DVD right now.
Well, it seems to me that the studios are quite content to take the existing mpeg2 version and just throw it on a BD since they have the space. When they don't have the space, they redo it in VC-1 and put it on the HD-DVD.
Originally posted by: Tiptup
Originally posted by: lordjedi
Why would having a bigger disk give you a faster install or faster load times?
Well, a BD is bigger in terms of storage space but not disc size. Otherwise, the read/write times have nothing to do with disc space. It has to do with the configuration of the data on the BD. I'm not sure, but I think that's the main reason why BDs couldn't be manufactured on existing DVD production machinery.
That's incorrect. The read/write times have to do with how fast the disc is spinning. And the reason BDs couldn't be made on existing lines is because they use a different laser (blue diode). HD-DVD actually use the same color laser, it's just narrower, but not as narrow as a blue laser. BDs are bigger in terms of space simply because they're using a blue laser diode instead of a red one, so they can get the beam smaller, which allows you to pack more data into the same area. HD-DVD is backware compatible because it uses a red laser, so the width just has to be changed between a DVD and an HD-DVD.