http://www.techradar.com/news/seagate-wants-to-launch-a-20tb-hard-drive-by-2019 >In the jostling battle for the biggest hard drive between Seagate and Western Digital – the latter of which holds the title at the moment with its 14TB helium-filled offering – Seagate is claiming to have struck a fresh blow with the development of drive tech which will allow HDDs in excess of 20TB to come to market in 2019. >As Tom’s Hardware reports, Seagate’s new technology is HAMR or Heat Assisted Magnetic Recording, which utilizes tiny lasers to boost storage density.