Court Ruling Favors Music-Sharing Networks Music file-sharing companies are not legally responsible for the swapping of copyright content through their file-sharing software, a federal appeals court ruled Thursday in a blow to movie studios and record labels. &lt;FONT face="verdana,MS Sans Serif,arial,helvetica" size="-2" color="#666666"&gt;&lt;B&gt;-Associated Press&lt;/B&gt;&lt;/FONT&gt;