WASHINGTON - The Supreme Court on Wednesday upheld longstanding copyrights designed to protect the profits of songs, books and cartoon characters, a huge victory for Disney and other companies. The 7-2 ruling, while not unexpected, was a blow to Internet publishers and others who wanted to make old books available online and use the likenesses of a Mickey Mouse cartoon and other old creations without paying high royalties. Hundreds of thousands of books, movies and songs were close to being released into the public domain when Congress extended the copyright by 20 years in 1998. Justices said the copyright extension,...