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Larry, it's my understanding that the players will use a new type of laser and the disks will use a new storage format. Basically DVD as we know it is now 'old' tech and must be replaced...(theiving b*st*rds!)
NEC and Toshiba, in their benevolence want to introduce it with capacity to read your old disks. For a while there will be old disks available to buy before they disappear. Sony et al couldn't give a crap about retro-readability and want you to buy a new everything - preferably with a big fat SONY stamp on it.
Whichever type gets introduced, it's a given that the current format will go.
Blue laser can read 'smaller' data than red laser due to its wavelength therefore 'Blue' DVDs will have even greater capacity than 'Red'.
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