9 Computer software used for linking to electronic networks from media signals, namely from information contained in audio signals; computer software for encoding audio signals with digital information and for decoding such digital information from such audio signals; pre-recorded audio recordings containing coded digital information embedded therein and stored in audio containing media, namely in CDs, DVDs, audiotapes, audio-video tapes, computer memory and electronic files; and computer software for recognizing information in audio signals and for linking to computers through the internet based upon the recognized information