According to a Sandvine study, Netflix has re-encoded some of its video library in order to make the streaming service more efficient and reduce its bandwidth demands. Netflix accounted for 37.1 percent of Internet traffic on fixed broadband networks during primetime hours six months ago in North America. Sandvine notes that Netflix represented 35.2 percent of downstream traffic under the same criteria during March of this year. “Last December, Netflix detailed changes in its video-encoding schemes, which the company said could reduce bit rates by up to 20 percent while delivering equivalent quality,” reports Variety. Meanwhile, “Amazon Video now represents 4.3 percent of peak-period traffic, up from 2 percent a year ago.”