Every few days it seems, we spot a story on the question of whether the nation’s 14-year-old copyright law may need an overhaul for the digital age.

The latest? Researchers, who were looking into old Sony Music CD’s which had copy protection that behaved like malware, worried that even researching the malware could be a violation of a 1999 federal law.

Harvard Law Professor Jonathan Zittrain joins Marketplace Tech host David Brancaccio to explain the law, called the Digital Millennium Copyright Act, and its upcoming legal tests.