Pirate websites blocked by the Australian government are used 50 per cent less than a year ago after increased efforts from entertainment companies to stop illegal video sharing sites.

In the past year there has been a 25 per cent drop in overall piracy in the year and a 53 per cent drop in the use of blocked sites, the Australian Site-Blocking Efficacy Report released on Wednesday by intellectual property solutions company Incopro shows.

Graham Burke, co-chief executive chairman of Village Roadshow says site blocking has helped improve piracy, but more needs to be done.

One way copyright holders can stop pirate websites in Australia is by getting a court order for internet service providers to block a site.