If someone is trying to interfere with your intellectual property, you need to preserve the evidence—or pay the price. It is likely that RealNetworks Inc. wishes that it had done so.   RealNetworks Inc. sued asking for a declaratory judgment that its product does not infringe the digital copyright law. In turn, Paramount and Other Hollywood movie studios also sued RealNetworks over the issue. In connection with these lawsuits, Paramount is accusing RealNetworks of not preserving evidence and seeking sanctions. It is important to save evidence relating to your intellectual property, including electronic evidence, when there is a possibility of litigation. Just remember preserving evidence is an important way to protect your intellectual property rights.