Getting in on this one just before it's considered dead
I dissagree. DVD's won't be phased out for a LOONG time and definately not because of Blu-Ray.
Blu Ray isn't a big enough improvement.
CD's came out a long time before DVD's, yet they made 0 impact on the VHS market, mainly because of capacity.
In terms of quality and capacity, DVD's combined both and were a vast improvement on VHS.
Blu Ray, while better, isn't as big a revolution as VHS to DVD.
I think DVD's are going to start losing out when things like 3d television start coming in strong. I'm assuming that it will take a much faster read speed and even more capacity to properly handle the new technologies emerging, the DVD killer will be what ever satisfies the needs of these new technologies.