YouTube executives are experiencing some difficulties with copyrighted materials uploaded to the popular video-sharing site, the Wall Street Journal reported. (Subscription required)

The company, which was recently bought by Google Inc. for $1.65 billion, is in the process of establishing content rights agreements with Viacom, owner of Comedy Central. Viacom, said it will allow some of its clips on YouTube after it had previously requested YouTube to remove copyrighted materials from the site.

The Journal reported that although YouTube is working out copyrighted content issues with large media companies such as Viacom and NBC, it doesn't stop the countless amateur videos of young people lip-syncing to copyrighted songs or using them as soundtracks.

Since YouTube has been bought out by Google, it risks being hit with lawsuits now that its pockets belong to Google.

"It's such a mess because the (entertainment companies) have all of these valuable assets that are just locked up with so many people who need to sign off on them," says YouTube Chief Executive Chad Hurley. "I don't know what it requires, if the government needs to be involved. I don't know."