=====================BEGIN QUOTE=============================
There is one bug in MD SYNC: recopyable copied data (SCMS-unlimited mode E)
will be transfered over the analog bus. (Recopyable original data [SCMS-un-
limited mode C] will be copied via the digital bus; thanks to Jim Resinger
for checking that out.) If you just set the target drive to record from the
other drive over the digital bus and play the source on the source drive,
SCMS-unlimited-E tracks are copied digitally and of course tracks are
marked.
Titles are not copied, but you can copy them one at a time with the Disc-to-
Disc Name Copy function.
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Does anyone know whether Sony has been made aware of this bug when it comes
to handling SCMS-unlimited recordings during MD-SYNC copying and whether
they will release new firmware to rectify this problem?
The logic currently reads:
On TRACK_CHANGE
Select Case SCMS_STATUS
Case ORIGINAL
Route via digital
Recording = COPY
Case COPY
Route via analog
Recording = ORIGINAL
End Select
End TRACK_CHANGE
It should read:
On TRACK_CHANGE
SCMS_STATUS = PROTECTION AND COPY_TYPE
Select Case SCMS_STATUS
Case UNLIMITED
Route via digital
Recording = UNLIMITED
Case LIMITED AND ORIGINAL
Route via digital
Recording = LIMITED AND COPY
Case LIMITED AND COPY
Route via analog
Recording = LIMITED AND ORIGINAL
End Select
End TRACK_CHANGE
This is where I would advocate use of flash-memory for equipment firmware
and, in the case of MD equipment, have it capable of accepting special
MD-DATA (MD-ROM) firmware upgrade discs to rectify known bugs. CD players
and associated equipment could read firmware updates off CD-ROMs and
system-control buses can be used to transmit firmware updates to other
equipment.
With regards,
Simon Mackay
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