Last July, researchers from Microsoft and the University of Washington said that they had successfully encoded about 200 megabytes of data onto synthetic DNA molecules. The company is now planning to take the technology commercial. "Computer architects at Microsoft Research say the company has formalized a goal of having an operational storage system based on DNA working inside a data center toward the end of this decade," reports MIT Technology Review. "The aim is a 'proto-commercial system in three years storing some amount of data on DNA in one of our four centers for at least a boutique application,' says Doug Carmean, a partner architect at Microsoft Research." From the report: Internally, Microsoft harbors the even more ambitious goal of replacing tape drives, a common format used for archiving information. Major obstacles to a practical storage system remain. Converting digital bits into DNA code (made up of chains of nucleotides labeled A, G, C, and T) remains laborious and expensive because of the chemical process used to manufacture DNA strands. In its demonstration project, Microsoft used 13,448,372 unique pieces of DNA. Experts say buying that much material on the open market would cost $800,000. According to Microsoft, the cost of DNA storage needs to fall by a factor of 10,000 before it becomes widely adopted. While many experts say that's unlikely, Microsoft believes such advances could occur if the computer industry demands them.