I see that on this Wikipedia page that it says "Use of AACS is optional
for HD-DVD, but mandatory for Blu-ray, which can add thousands of dollars
to production costs."
Is that true? Does that mean that Blu-Ray players must refuse to play
disks without AACS?
Presumably, no home software will be able to author disks with AACS?
Since high-definition video cameras are becoming popular, I'd have
thought that many people would want to do home authoring of, say, holiday
videos, for playback on their disk player.
Den 23.02.2008 kl. 17:00 skrev Dave Farrance
<DaveFarrance@OMiTTHiSyahooANDTHiS.co.uk>:
> I see that on this Wikipedia page that it says "Use of AACS is optional
> for HD-DVD, but mandatory for Blu-ray, which can add thousands of dollars
> to production costs."
>
> http://en.wikipedia.org/wiki/Compari...urity_features
>
> http://tinyurl.com/2ak69e
>
> Is that true? Does that mean that Blu-Ray players must refuse to play
> disks without AACS?
>
> Presumably, no home software will be able to author disks with AACS?
>
> Since high-definition video cameras are becoming popular, I'd have
> thought that many people would want to do home authoring of, say, holiday
> videos, for playback on their disk player.
> .............
Well You could interprete it as commersial film content has to be AACS
encrypted. That means that non encrypted files can be played. And this is
also a matter a fact. The restrictions of home made content lyes another
place:
"DivX and WMV format files of file size 2 GB or larger cannot be played."
That is for some reason a restriction. Maybe it is in skill, maybe it is
some kind of: "don't make Your own High Def pirate copy!;-)"
It does not have those limitation in the other formats though. If You
literally read the page.
In article <op.t61ed0ixcof222@lyrik.local>, Lyrik <lyrik@heaven.dk>
wrote:
> "DivX and WMV format files of file size 2 GB or larger cannot be played."
> That is for some reason a restriction. Maybe it is in skill, maybe it is
> some kind of: "don't make Your own High Def pirate copy!;-)"
Sounds to me more like an inherent limitation of the formats. .AVI files
use an IFF type structure, which uses 32-bit byte addressing. Since too
many operating systems use signed 32-bit integers for file offsets, this
limits DivX to 2GB. WMV is sufficiently old that I wouldn't be surprised
if it also used 32-bit byte addressing.
Dave Farrance wrote:
> I see that on this Wikipedia page that it says "Use of AACS is optional
> for HD-DVD, but mandatory for Blu-ray, which can add thousands of dollars
> to production costs."
>
> http://en.wikipedia.org/wiki/Compari...urity_features
>
> http://tinyurl.com/2ak69e
>
> Is that true? Does that mean that Blu-Ray players must refuse to play
> disks without AACS?
Apparently not, I've been viewing personally produced HD videos from a
friend for a while now on my Sony BD player. He's using some kind of
Panasonic HD camera and burns them hisself. I know these videos don't
have any sort of copy protection embedded in them.
>
> Presumably, no home software will be able to author disks with AACS?
I dunno what software he's using, but he uses it in his home.
>
> Since high-definition video cameras are becoming popular, I'd have
> thought that many people would want to do home authoring of, say, holiday
> videos, for playback on their disk player.
Den 25.02.2008 kl. 03:24 skrev Tantalust <tantalust@paradise.net>:
> Hey Lyrik,
> Off topic, but were you able to catch the CBS "60 Minutes" broadcast
> segment, "Little Denmark", shown here on Feb. 17th.
..................
No I have not seen it. But usually the 60 minutes are broadcasted in
Denmark, if I can find the right channel. At the moment I concentrate the
focus on the American election. It is the democratic candidates I have
seen. Two very good candidates. Although I must give in to Obama and
surrender.;-) He is very good on foreign politics I think. He has the
advantage of a muslim father, a christian mother, has been raised in a
muslim country, frekvented a catolic school and chosen an evangelist
protestant church in Chicago.
You can't fool him. He knows it all and have chosen right. He knows what
You can accomplish in the Middle East, and what You cannot accomplish.
What is worth the effort, and what is not;-)
I do not know what "Little Denmark" has to say, but Denmark is the origin
of Angel as in Anglo/Saxon. Of the viking chief Rollo that settled in Gaul
and whose descendant was William the Conqueror and the Normans.
And our destiny is to be sal****er injection in the "english" culture,
when it is about to "rot and become decadent", which is the backside of
being "british." Further we like sal****er disapeares in the bodies we are
injected in.;-)
I could become American just by reading this news group. I am ready to be
absorbed.;-) Actually I have said in the danish news group that I like the
Americans better!;-)))
> Dave Farrance wrote:
>
>> It says here that "Use of AACS is optional for HD-DVD, but mandatory
>> for Blu-ray, which can add thousands of dollars to production costs".
>> Does that mean Blu-Ray players will only play AACS encrypted disks?
>>
>> http://tinyurl.com/2ak69e
>>
>Well You could interprete it as commersial film content has to be AACS
>encrypted. That means that non encrypted files can be played. And this is
>also a matter a fact. ...
Thanks. It seems you're right that commercial films on Blu-ray must have
AACS encryption. The only reason I can think of for that requirement is
that the big movie studios can squeeze their smalltime competition. After
all, Sony's very successful strategy was to cozy up to the big movie
studios and give them everything that they asked for (region-coding and
extra DRM stuff).
I've followed up the source reference for that Wikipedia info. A
filmmaker put their arthouse film "Chronos" out on HD-DVD and Blu-ray.
They didn't use AACS on HD-DVD disks, but they had to use it on Blu-ray.
It cost them an incredible $10,000 just for the AACS, so they had to
charge more for the Blu-ray version because their production run was too
small to absorb that cost.
It's not going to be a problem in the short term because most smalltime
filmmakers will continue to put their films on DVD -- but what will they
do in a few years time when Blu-ray players outsell DVD players? I can't
imagine that many of them will be able to afford that sort of cost for
AACS. Presumably most of them will be forced to continue with DVDs and
standard-definition. Fortunately Blu-ray players will still play DVDs.
>Dave Farrance wrote:
>> Does that mean Blu-Ray players will only play AACS encrypted disks?
>
>Apparently not, I've been viewing personally produced HD videos from a
>friend for a while now on my Sony BD player. He's using some kind of
>Panasonic HD camera and burns them hisself. I know these videos don't
>have any sort of copy protection embedded in them.
>>
>> Since high-definition video cameras are becoming popular, I'd have
>> thought that many people would want to do home authoring of, say, holiday
>> videos, for playback on their disk player.
>
>Or documentaries.
Or corporate presentation discs. I really hope that it's true that all
Blu-ray players will play non-encrypted disks. I say that because I've
Googled on "Blu-ray authoring" and on the first page of hits, I've found
somebody saying that they had problems even with expensive software for
authoring Blu-ray business presentations. He couldn't use AACS, of
course, and wondered if that was the reason that his disk played on some
Blu-ray players but not others. That wasn't resolved.
And at what point would a corporate presentation become "commercial" and
fall foul of Blu-ray's mandatory requirement to use AACS-encryption on
commercial disks? I'm sorry that HD-DVD failed, because AACS was
optional for that. And as a UK resident, it's annoying that Blu-ray
movies have region-coding -- unlike HD-DVD movies. And I doubt that it
will be possible to have "region-free" Blu-ray players because of all the
requirements for unhackable super-strong DRM on Blu-ray.
"Lyrik" <lyrik@heaven.dk> wrote in message
newsp.t622e9m9cof222@lyrik.local...
> Den 25.02.2008 kl. 03:24 skrev Tantalust <tantalust@paradise.net>:
>> Hey Lyrik,
>> Off topic, but were you able to catch the CBS "60 Minutes" broadcast
>> segment, "Little Denmark", shown here on Feb. 17th.
> No I have not seen it. But usually the 60 minutes are broadcasted in
> Denmark, if I can find the right channel. At the moment I concentrate the
> focus on the American election. It is the democratic candidates I have
> seen. Two very good candidates. Although I must give in to Obama and
> surrender.;-) He is very good on foreign politics I think. He has the
> advantage of a muslim father, a christian mother, has been raised in a
> muslim country, frekvented a catolic school and chosen an evangelist
> protestant church in Chicago.
> You can't fool him. He knows it all and have chosen right. He knows what
> You can accomplish in the Middle East, and what You cannot accomplish.
> What is worth the effort, and what is not;-)
> I do not know what "Little Denmark" has to say, but Denmark is the origin
> of Angel as in Anglo/Saxon. Of the viking chief Rollo that settled in Gaul
> and whose descendant was William the Conqueror and the Normans.
> And our destiny is to be sal****er injection in the "english" culture,
> when it is about to "rot and become decadent", which is the backside of
> being "british." Further we like sal****er disapeares in the bodies we are
> injected in.;-)
> I could become American just by reading this news group. I am ready to be
> absorbed.;-) Actually I have said in the danish news group that I like the
> Americans better!;-)))
> Greetings Jens "Lyrik" Bech
> Or corporate presentation discs. I really hope that it's true that all
> Blu-ray players will play non-encrypted disks. I say that because I've
> Googled on "Blu-ray authoring" and on the first page of hits, I've found
> somebody saying that they had problems even with expensive software for
> authoring Blu-ray business presentations. He couldn't use AACS, of
> course, and wondered if that was the reason that his disk played on some
> Blu-ray players but not others. That wasn't resolved.
>
> http://www.dv.com/features/features_...leId=196602808
>
> And at what point would a corporate presentation become "commercial" and
> fall foul of Blu-ray's mandatory requirement to use AACS-encryption on
> commercial disks? I'm sorry that HD-DVD failed, because AACS was
> optional for that. And as a UK resident, it's annoying that Blu-ray
> movies have region-coding -- unlike HD-DVD movies. And I doubt that it
> will be possible to have "region-free" Blu-ray players because of all the
> requirements for unhackable super-strong DRM on Blu-ray.
Please. DVDs have region coding, not to mention NTSC/PAL restrictions and
that wasn't a big issue to overcome. Where there's a will, there's a way
and the studios will always be one step behind the curve.
Blu-ray Home Authoring? 
p.t622e9m9cof222@lyrik.local...
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