Re:Circle Logic (ish): Sloppy SCMS and DMCA
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Geographic Screening
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· Score: 2
CD has absolutely no read/copy protection scheme built into it.
Wrong, it does. It is part of SCMS (Serial Copy Management System), used also in DAT machines.
However, it is almost trivial and therefore easily neglected (and circumvented): it uses only 1 control bit per track and no encryption.
Which, interestingly, brings me to a new statement of the circle logic:
Many recent CD-ROM drives are capable of digitally extracting audio data from audio CD's, from non-copyrighted tracks (which is perfectly legal), from copyrighted original tracks (which would be legal if they included a means for enforcing SCMS restrictions, highly impractical), and from copyrighted copies (which circumvents SCMS and therefore is illegal)
All (as far as I know) CD recorders operated from a computer (as opposed to stand-alone models) are able to write digital audio CD's containing tracks with arbitrary settings of the SCMS control bit (which may circumvent the protection of SCMS if the source data came from a copyrighted copy)
3. So, even though some may have lobbied for the DMCA many CD-ROM drive manufacturers and all computer operated CD recorder manufacturers, when used for copying audio CD's would violate the DMCA!
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Wrong, it does. It is part of SCMS (Serial Copy Management System), used also in DAT machines.
However, it is almost trivial and therefore easily neglected (and circumvented): it uses only 1 control bit per track and no encryption.
Which, interestingly, brings me to a new statement of the circle logic:
Many recent CD-ROM drives are capable of digitally extracting audio data from audio CD's, from non-copyrighted tracks (which is perfectly legal), from copyrighted original tracks (which would be legal if they included a means for enforcing SCMS restrictions, highly impractical), and from copyrighted copies (which circumvents SCMS and therefore is illegal)
All (as far as I know) CD recorders operated from a computer (as opposed to stand-alone models) are able to write digital audio CD's containing tracks with arbitrary settings of the SCMS control bit (which may circumvent the protection of SCMS if the source data came from a copyrighted copy)
3. So, even though some may have lobbied for the DMCA many CD-ROM drive manufacturers and all computer operated CD recorder manufacturers, when used for copying audio CD's would violate the DMCA!