University releases best practices code for online video creators

WASHINGTON­­­­ - There are millions of remix videos on YouTube, according to the video-sharing Web site, and about 80,000 mash ups.

Remixes, mash ups and other reworked versions of copyrighted content make up an enormous part of the material posted on Web-sharing sites. Some are legal, some are not, and experts say many users may not know the difference.

Now, creators of online videos can find out how they can use copyrighted material without breaking the law.