Everyone should read the additional info link given in the heading:
http://www.audiorevolution.com/news/0800/09.dvdwatermark.shtml
I agree that something has to be done to protect copyrighted materials, but I'm afraid that audio watermarking could cause a degradation in the quality of playback. Although the iTunes Music Store songs (AAC) sound very good I can usually pick out an original CD track from a song that I've purchased from the store when I do a "blind" comparison. It's often difficult to actually identify what is different, I guess I'd call it a very slight fuzziness in the clarity of some of the background (lesser) instruments or notes. To my ears AAC still sounds very good, but it's not identical when encoded at 128kbps (but I continue to buy from the music store, at least so far). However, if they add watermarks that introduce additional audible differences then that may be the end of my use of the Music Store.
http://www.audiorevolution.com/news/0800/09.dvdwatermark.shtml
I agree that something has to be done to protect copyrighted materials, but I'm afraid that audio watermarking could cause a degradation in the quality of playback. Although the iTunes Music Store songs (AAC) sound very good I can usually pick out an original CD track from a song that I've purchased from the store when I do a "blind" comparison. It's often difficult to actually identify what is different, I guess I'd call it a very slight fuzziness in the clarity of some of the background (lesser) instruments or notes. To my ears AAC still sounds very good, but it's not identical when encoded at 128kbps (but I continue to buy from the music store, at least so far). However, if they add watermarks that introduce additional audible differences then that may be the end of my use of the Music Store.