Viacom has accused YouTube of being "unwilling" to reach an agreement about the posting of music videos and clips from Viacom-owned shows.
The media giant has demanded that YouTube takes immediate action to remove reportedly more than 100,000 infringing clips posted on the Google-owned video portal.
Viacom claims that the postings, which are understood to feature a total of 1.2bn video streams, have been illegally taken from Viacom-owned channels, which include MTV, Comedy Central and Nickelodeon.
According to Viacom, Google has failed to honour its commitment to clamping down on unauthorised video posting on YouTube, and for not offering "fair compensation" for people who own the intellectual property rights to work posted on the site.
A spokesperson for Viacom said: "Filtering tools promised repeatedly by YouTube and Google have not been put in place, and they continue to host and stream vast amounts of unauthorised video.
"YouTube and Google retain all of the revenue generated from this practice without extending fair compensation to the people who have expended all of the effort and cost to create it."
Google's recent decision to start linking more of its YouTube searches to clips on Google Video, which hosts more banner advertising, is believed to be one of Viacom's main objections to the posting of clips from its broadcast output.
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