KELLY,
DON"T HOLD YOUR BREATH WAITING FOR ANTI-COPY GUARD DEVICES TO HIT THE MARKET. SOUND CHOICE & ASSOCIATES HAVE CLOSED THAT DOOR. READ BELOW, AND BELOW THAT IS A LINK TO THE SITE THAT IT WAS COPIED FROM. GOOD INSIGHT TO CURRENT COPYWRITE LAWS. HARDLY ANY SUCH THING AS PUBLIC DOMAIN LEFT, EITHER.
In order to transact commerce in the "digital environment," the entertainment industry is expected to rely heavily on anti-copying systems -- for example, systems that scramble digital signals or prevent second generation copying (that is, you can copy a work once, but not twice). In addition, copyright owners are planning to implement a system of embedded copyright management information (CMIs or "digital watermarks") in their copies. These CMIs will identify the copyright owner and provide information about the work.
To prevent the circumvention of these systems, Congress passed Title I of the Digital Millennium Copyright Act (the "DMCA"). This legislation outlaws "little black box" technology. A little black box is any program or device that undoes the copy-protection systems installed by the entertainment industry. Or as it's officially described, it's anything that exists primarily to "avoid, bypass, remove, deactivate, or impair a technological measure, without the authority of the copyright owner." There are criminal and civil penalties for those who make and market this technology. The prohibition against little black boxes goes into effect immediately. Under certain conditions, law enforcement agencies are exempt from these requirements.
http://www.nolo.com/index.cfm
George