Here's an article from January explaining how data storage using DNA has 
already been done.

http://www.guardian.co.uk/science/2013/jan/23/shakespeare-sonnets-encoded-dna

On 06/13/2013 12:49 PM, Matt Graham wrote:
> (Part of the problem with doing stuff with DNA is that genes from bacteria to
> mammals appear to be optimized for space, not clarity, and all the comments
> have been stripped out.)

-- 
"I get my copy of the daily paper, look at the obituaries page, and if I’m not there, I carry on as usual."

Patrick Moore