With the proliferation of music on the Internet in the latter half of the 1990's, Congress reconsidered and adjusted the status of the performance right in sound recordings. For reasons that I have already discussed, transmissions of sound recordings over the Internet are technologically different from similar transmissions via cable or satellite. In order to perform a copyrighted song over a computer, copies of that work must be made along the transmission path to deliver the work. These copies are typically ephemeral in nature, but are necessary to enable the work to travel from the computer server to the desktop computer. Use of a copyrighted sound recording in this context consequently may require a license for both the performance right and the reproduction right.