[music-dsp] Re: how to copy only once through SPDIF
watt at zh.t2-design.com
Thu Feb 15 14:37:21 EST 2001
> There is only one copyright bit in AES-3/spdif/IEC958(?), I think watt
> to the generation bit (as the second copyright bit). These two bits are
> for SCMS (serial copy managment system), which was intended to allow a
> copy of an original (e.g. a CD), but no further copies to be derived from
do you mean there is only bit in SPDIF and so i can not do only once
copy for SPDIF?
if can do one generation copy, where is the second bit for SCMS ? i do the
SPDIF of sound card. i want to know this eagerly.
> IIRC: a) (!copyright) & (!generation) -> rec enable
> b) (!copyright) & (generation) -> rec enable
> c) (copyright) & (!generation) -> rec enable, but set generation
> d) (copyright) & (generation) -> rec disable
> And on a Tascam Da30-MkII DAT machine you can set these two bits before
> (at least I remember such a chapter in the manual of the machine).
> /* Michael Haertl */
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