Nanotechnology and the iPod

This movie uses interviews with people on the street and contributions from members of staff at both the University of Sheffield and Sheffield Hallam University, to explore some of the science behind the iPod's capacity to store large amounts of music and other data in such a small space. You can get songs and videos off the internet, store and play them whenever you want, but what enables it to do this?
  Category: Applications
  Source: EPSRC