50 TB on a 4.5

Scientists from the Harvard Medical School claim to have synthesised a protein able to store information and allow its access. A variant of a real protein found in bacteria, its property is to switch predictably from one state to another when exposed to light. The colour of the protein indicates its current state.
Little information has been given so far concerning data storage and reading. What we know is that this technology makes it possible to store from 500GB to 50TB of data on a 12 cm disk (4.72").
Now what we need to know is this protein's behaviour in the long term and its resistance to light and heat.
For the moment, we'll just say that this could be interesting if it is further developed. Wait and see...
JCJ