Cds were replaced by Dvd disks and recently Dvds are getting replaced by Blue ray disks as portable media. By next 8 years even Blu ray disks will start getting replaced by Vod,Video on Demand services as dominant media provider.Research firm SNL Kagan predicted Blu-ray's dominance will be short-lived by 2017 in market of physical medias.
VOD services will possible get more popular choice improve in both technology and content over the next decade