With 1000Gb = 250DVD = 20 Blu-Ray, are these tera-discs going to make HD and Blu-Ray obselete?

Thats what says Tech UK article at: http://www.tech.co.uk/home-entertainment/hi-fi-and-audio/other-playback-and-recording-formats/news/how-to-fit-1tb-of-data-on-one-cd-sized-disc?articleid=1665250963&source=rss

Here are some of the excerpts from the article:

"Blu-ray and HD DVD have pushed the limits of optical storage further than anyone thought possible. But a new technology has emerged which makes Blu-ray's 50GB capacity look tiny. Mempile in Israel says it's able to fit an incredible 1TB of data onto one "TeraDisc" which is the same size as CDs and DVDs. That's 20 times the capacity of a maxed-out dual-layer Blu-ray disc"

Highest capacity discs ever
"The TeraDisc is made of a material which is highly responsive to two-photon writing and reading. This allows us to write anywhere in that we can focus a red laser onto the disc, e.g. multiple layers," Dr. Erez told TFOT.info."

On a 1TB disc, you could store:
212 DVD-quality movies
250,000 MP3 files
1,000,000 large Word documents