MD: CD-Text titles over S/PDIF (was: USB-cable in the Sony MZ-Rx00PC's)

[Eric Woudenberg, Minidisc.org Editor]

Timothy Stockman <[EMAIL PROTECTED]> writes:

> >> As I understand the naming of the tracks on the MD will be easier
> 
> > No, it won't, since none of that information is carried on the PCM signal.
> 
> In fact, that information *is* on the the S/PDIF digital audio signal coming
> from the digital output of a CD player (assuming the disc is encoded with
> CD text). All of the subchannel bits except "P" are sent via the "usr bits"
> of the S/PDIF stream.  I don't know of any computer hardware that uses
> the user bits, though.

Actually the Townshend DATLink (TOSlink<->SCSI adapter) will let you
get or set all 32 bits of every S/PDIF sample. Not likely that many
folks have such an expensive device however (see: http://www.tc.com/).

Rat <[EMAIL PROTECTED]> writes:

>Specifically, the R through W subcode channels, which had been previously
>"reserved for future use".

>All subcode channel bits can be sent.  Hypothetically.  In practice this is
>not the case.  If it were then Sony's "joint text" players and recorders
>would not need a special cable to carry the information.

Yes, but Sony could have chosen their double-cable Joint-Text approach
(read: hack) for other reasons (they would have to be good ones, I'll
grant you).

It would really be great if you two [always meticulous contributors]
could figure out whether the title bits are sent via S/PDIF by any
consumer CD player and provide a reference for it. I somehow don't
think any such equipment does that, but I'd love to be proved wrong.

Rick


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