Nor has Real Networks, Microsoft's major competitor in Internet media software.
"There's this new concept of 'rental,' " said Dave Richards, a spokesman for Real Networks.
Last week, mlb.com announced a deal with Real Networks to stream all the teams' radio broadcasts.
Real Networks makes the Real One media-playing software that competes with Media Player from Microsoft.
Like real networks, all three were scale-free, unlike any of the intentionally fictional narratives examined.
Unlike the Real Networks player, which plays back all of the major audio and video formats, Windows Media 9 will not play material encoded in the Real Networks format.
Princeton Video is to describe today details of the agreements, with Real Networks and Engage Inc., part of CMGI Inc.
The new software competes directly with Real Player from Real Networks and Windows Media Player from Microsoft.
Last week, Real Networks released RealOne, the first pay-for-play service to come out of MusicNet.
Real Networks, which has 750,000 subscribers to its premium services, had the most revenue from content sales in 2001.
"Our work illustrates that in fact the real networks are far from being random," Dr. Barabasi said.
