Physical media is here to stay
I think the issue is not whether physical/optical media will be replaced by streaming.
But will there be ever another format enjoying the success of the DVD.
I don't think this will ever happen again.
Premium quality for a premium price will probably be around: DVD-A, SACD, BD (probably), etc.
Heck, even LP sales go up over the last few years!
Selling the consumer a new copy of the same movie/album was RIAA/MPAA goal of yesterday.
Today they would much rather prefer charging you for every "presentation".
And that means eliminate physical media and prevent any form of copying.
Since they are not so good at the latter, they don't press too hard on the former.
I believe the labels/studios will never give up the idea of preventing the consumer to make a copy.
That is an almost impossible goal in the physical world: once the standard is set and broken
there is not much you can do. Just look at the fatre of the DVD and BD format.
With streaming it is much easier.
The format can be updated on a daily basis if needed. Just look at WMA.
Hence, I think one day streaming will be the new DVD.
BD (most likely the last optical format) will stick around in LP's role...
Diogen.