[MrsJoseph]

From (www.copyright.gov and http://www.copyright.gov/help/faq/fa...e.html#howmuch )

“How much do I have to change in order to claim copyright in someone else’s work?”

“Only the owner of copyright in a work has the right to prepare, or to authorize someone else to create, a new version of that work. Accordingly, you cannot claim copyright to another’s work, no matter how much you change it, unless you have the owner’s consent. See Circular 14, Copyright Registration for Derivative Works.”

Circular 14

“To be copyrightable, a derivative work must differ sufficiently from the original to be regarded as a new work or must contain a substantial amount of new material. Making minor changes or additions of little substance to a preexisting work will not qualify a work as a new version for copyright purposes.”