Peer-to-peer download sites Kazaa and The Pirate Bay are set to return with a new, legal subscription model.
P2P下载站点Kazaa和he Pirate Bay将启用新的合法的下载方式。
Illegal peer-to-peer file sharing is still rife on the net
Kazaa, shut down by a $150m (£91m) lawsuit in 2006, will be reincarnated（转世） as an unlimited download service with a fixed monthly subscription（收费） rate.
The Pirate Bay has outlined a "give and take" model which pays users for sharing their resources.
The Swedish software firm that owns The Pirate Bay said the service would be free for a majority of users.
Both services are following the example set by Napster, which was the subject of several lawsuits that eventually shut down and bankrupted the service.
It re-launched in 2008 as the largest online retailer that did not restrict use of its content with so-called digital rights management (DRM) software. DRM restricts what people can do with the songs they buy.
Now, the two heirs（继承人） to the Napster-driven peer-to-peer downloading throne have entered into a legal trading arena to compete with two very different business models.
Pricing structures
Kazaa is expected to launch in the US this week as a monthly subscription service, costing $20 (£12) per month for unlimited downloads.
It will issue songs in the Windows Media format, with DRM that will restrict use of downloaded content to five computers or devices.
The Pirate Bay, once the largest illegal download site on the web, was acquired by Swedish software firm Global Gaming Factory X after the original owners were found guilty of abetting（煽动，教唆） violation of copyright law.
Last week, it hired Wayne Rosso - a former president of P2P site Grokster and founder of P2P site Mashboxx - to help strike deals and refine（精炼，净化） the new business model.
The site's new incarnation（赋予肉体，具人形） is expected to launch in August, and the firm is developing plans to charge a monthly fee to use the service.
That fee would be reduced if users shared their downloaded content or allowed the service to utilise the storage space on their computers.
"For the great majority it will be free of charge, for a minority it will actually make them money, and for a small portion（小部分） it will cost them," Hans Pandeya, chief executive of Global Gaming Factory X, told the AP news agency.