>As >long as music is released on CD, preventing copying is impossible. However, >if all elctronic music distribution is via SDMI or the like it'll make >pirating electronically distributed music just that little bit harder. And >when EMD is the only way... > >I mean no one can argue software piracy prevention techniques are foolproof >(they thought CDs'd stop piracy - yeah right) but they still have a use. As long as music is heard using ears copying will be impossible to prevent. IF the sound quality is every bit as good with the security scheme as without it then it will be possible to re-encode at the analog level with so close to no quality loss as to make it irrelevant. This makes it slightly harder to make a copy which replicates the original structure physically (exact track placement on media etc) but if the idea is mainly to make listenable music, do we care. Control information is another issue and that is still potentially secure. If you CAN'T copy at near 100% quality level then why not? The only argument that I can think of is that the re-recording equipment analog to digital process is not as good as that used originally.I would find it hard (but not impossible) to believe that currently available amateur codecs were not far better than the ability of the ear/brain to resolve. Someone will no doubt educate me :-) Russell McMahon