Jim has got a point with regards to the availability of feature
10Eh for blank DVD-Download medium.
Feature 106h needs to be current for recorded DVD-Download
disc, otherwise legacy DVD playback applications wouldn’t work.
Btw, Kohda-san kindly pointed me to the unintended double
negation in my proposal of alternate working. Please read accordingly: "This bit shall be set to zero if neither a DVD CSS/CPPM medium nor a recordable DVD-Download medium is not present."
With regards,
David.
From: owner-mtfuji5@avc-pioneer.com
[mailto:owner-mtfuji5@avc-pioneer.com] On Behalf Of Jim Taylor
Sent: Wednesday, September 03, 2008 5:47 PM
To: mtfuji5@avc-pioneer.com
Cc: t10@t10.org
Subject: RE: DVD CSS Feature Descriptor/DVD-Download
David is right, DVD-Download media by definition are CSS media,
so it would be confusing to add DVD-Download as if it were different.
That said, my understanding is that feature 106h is for recorded
media, not blank media, since it’s used in CSS playback. Note that
it’s set for CPPM but not for CPRM. Therefore it should NOT be set for a
blank DVD-Download disc. It could be set for a recorded DVD-Download disc, but
I don’t know off the top of my head if it will be hard for the drive to
make the distinction.
We already created feature 10Eh for DVD-Download.
-- Jim
From:
owner-mtfuji5@avc-pioneer.com [mailto:owner-mtfuji5@avc-pioneer.com] On
Behalf Of David Burg
Sent: Wednesday, September 03, 2008 3:21 PM
To: mtfuji5@avc-pioneer.com
Cc: 't10@t10.org'
Subject: RE: DVD CSS Feature Descriptor/DVD-Download
Hello,
I am not a law… Erh, not a native English speaker,
but shouldn’t it be (from a language point of view) something like "This bit shall be set to zero if neither a DVD CSS/CPPM medium nor a recordable DVD-Download medium is not present."?
From a technical point of view, aren’t DVD-Download media
supposed to be CSS medium?
With regards,
David.
From:
owner-mtfuji5@avc-pioneer.com [mailto:owner-mtfuji5@avc-pioneer.com] On
Behalf Of Reiner Kopf
Sent: Tuesday, September 02, 2008 9:58 AM
To: 'mtfuji5@avc-pioneer.com'
Cc: 't10@t10.org'
Subject: DVD CSS Feature Descriptor/DVD-Download
Hello
all,
while
reviewing the latest Mt Fuji specification rev 7, ver 1.00, we found that the
definition of the "Current"
bit
in chapter "17.4.2.46 Feature
0106h: DVD CSS"
on page 619 should be extended in order to take into
account
a DVD-Download disc (SL and DL).
Our
proposal is that the "Current" bit should also be set to one in case
a DVD-Download disc is present.
So
the description of the "Current" bit should be modified from
"This bit shall be set
to zero if DVD CSS/CPPM medium is not present."
to
"This bit shall be set
to zero if DVD CSS/CPPM medium and a recordable
DVD-Download disc is not present."
Best
regards,
Reiner
Kopf
Nero
AG