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Main     Background         Methods         Results     Conclusions         Group Members     |
Conclusions |
Based on our results, digital watermarking on CD's would best be done in the time domain. In order to prevent the detection of the watermark by a user, a hashing algorithm and even possibly some kind of encoding could be used. When manufacturers produce CD writers, they could include the decoder for the encoding method to determine whether or not it can make copies of the disk. Once the encoding algoritm is recognized by the burner it could return a message to the user stating that the disk is unburnable due to copyright law. Since the digital watermark would still be in place if the user recorded the CD to their hard drive they still could not burn the music to a CD. In order for this to work completely, there must also be an agreement with the makers of "CD-ripping" software to block encoding the data into MP3 format. Either this or it would be necessary to include a watermark that gets taken into account in the encoding so that it is not lost in the process. |