99 per cent of files accessed through a Torrent network are unlicensed copyright material, according to a survey by an American undergraduate.

Only 10 of the 1021 files in the survey could be distributed over the Mainline network without infringing copyright. The ten works licensed for distribution included two Linux distros, game pack add-ons and trial software. Only 1 of the 145 pornographic files was considered non-infringing, student Sauhard Sahi found.