CSS encryptiion

jjulio1111 · Post by **jjulio1111** » Mon Jun 18, 2007 4:22 pm

I don't understand this:

What is DLT and what can the Ulead DLT Writer achieve for me?
As a DVD Workshop feature, Ulead DLT Writer is used to output DVD content for DVD mastering purposes. DLT (Digital Linear Tape) has been a popular data backup method for decades. The main reasons for its popularity are its large capacity and its reliability. Today it is used in both CD (audio CD/data CD/VCD/SVCD) and DVD (DVD-Video/DVD-Audio) mastering. There are two protocols used to write CD and DVD content to DLT for mastering. One is DDP (Disc Description Protocol) v2.0 and the other is DVD_CMF (DVD Cutting Master Format) v1.2. DDP is the most popular and is supported by most DVD/CD mastering companies. DVD_CMF is based on DDP with extra considerations for CSS encryption. For DVD-Audio mastering, DVD_CMF is the only option because DDP cannot support encryption. This version of the DLT Writer only supports DDP v2.0.
There are many ways to write data to DLT. According to DDP and some disc mastering companies, it is better to use the ANSI X3.27 standard to write to DLT. The DLT Writer also supports this standard. A DVD disc can contain multiple sides and multiple layers. For mastering purposes every layer should have an individual DLT tape with the proper information recorded in the DDP header. To explain further: if you want to master a 2-sided DVD with 2 layers on each side, you will need four DLT tapes.
DVD mastering has the following variations:
DVD-5: a single side with one layer
DVD-9: a single side with two layers
DVD-10: two sides with one layer each side
DVD-18: two sides with two layers each side
Ulead DLT Writer supports output to DVD-5 and DVD-9 discs. For DVD content which will be divided into multiple layers, the split point must be set and it must be on the ECC block boundary. One ECC block is equal to 16 DVD blocks (a block is equal to 2048 bytes). For multi-layered discs, the addressing method for a block in each layer may be different and is dependent on how you organize the data on the final DVD disc.

LOOK:

The PIONEER DVR-S201 ( http://www.arsenproductions.de/knowledg ... er_dvd.htm )

The DVR-S201 is Pioneer's professional AUTHORING DVD-R drive - capable of buring both 3.95 GB and 4.7 GB AUTHORING media, this drive will be capable of creating Master DVD discs for replication using the CMF format.

FEATURES:

AUTHORING Drive - for Professional use
EXTERNAL MOUNT - SCSI Interface
Uses 635 NanoMeter Laser Wavelength
Can write DDP Header Information
Can write Macrovision bits
Can NOT write CSS Encryption Keys
Can create a CUTTING MASTER DISC
Writes DVD-R (DVD-Video) at 1X Speed
Doesnt write DVD-R/W, CD-R or CD-R/W
Complete 4.7 GB disc written in abt. 1 Hr.
Can store roughly 2 hrs of DVD-Video
Compatible with DVD Studio Pro
ONLY uses DVD-R AUTHORING Media!
Burns 3.95 GB OR 4.7GB Authoring Media
CAN MAKE A REPLICATION MASTER

Can create a CUTTING MASTER DISC, but Can NOT write CSS Encryption Keys,

I DON'T UNDERSTAND

Devil · Post by **Devil** » Mon Jun 18, 2007 4:36 pm

A Macrovision engineer informed me that CSS and Regional data must be in the code zone where the DVD-R data is stored, inside the burning zone. As these data are pressed and not burned, there is no hope of burning them. Only DL tape can be used to produce protected masters.

jjulio1111 · Post by **jjulio1111** » Mon Jun 18, 2007 5:13 pm

It's because replicated discs have 2054 bytes per sector (as opposed to home burned discs using 2048 bytes per sector).

Currently, dvd burners cannot burn the CSS/APS because they are limited to the 2048 bytes per sector -- but that might change sometime later this year where we *might* be able to burn CSS on home made DVD's (the format was approved, but the burners, software, and dvd blanks will need to be able to work properly for this to happen). And there's still the licensing side of things (who pays -- users and/or the software companies )

Regards,
George

DO YOU KNOW IF THIS FORMAT HAS A NAME?

GeorgeW · Post by **GeorgeW** » Mon Jun 18, 2007 5:31 pm

PLEASE DO NOT DOUBLE POST

Regards,
George

jjulio1111 · Post by **jjulio1111** » Mon Jun 18, 2007 5:34 pm

Ok, but do you know if this format has a name?

sjj1805 · Post by **sjj1805** » Mon Jun 18, 2007 5:35 pm

This user forum is somewhere that users can exchange ideas and knowledge about InterVideo-Ulead products with other users.

For answers relating to Macrovision which is a completely separate Company, you may need to visit their website
http://www.macrovision.com/

jjulio1111 · Post by **jjulio1111** » Mon Jun 18, 2007 5:40 pm

A Macrovision engineer informed me that CSS and Regional data must be in the code zone where the DVD-R data is stored, inside the burning zone. As these data are pressed and not burned, there is no hope of burning them. Only DL tape can be used to produce protected masters.
_________________
Devil

BUT DVD MASTER, AREN幅 BURNED ONES? UNLESS DVD MASTER AREN'T PROTECTED DVD ONES

sjj1805 · Post by **sjj1805** » Mon Jun 18, 2007 5:47 pm

What Devil has told you is that to add Macrovision you need to send of a DLT to a company that mass produces DVD discs.
Those discs are not burned in the way we burn a DVD with our PC based DVD burners. Instead a "Glass master" is produced and then they are pressed on an assembly line.

As I said above, Macrovision is an Independent Company who serve large organisations such as Hollywood Film studios. To use their encryption system you have to pay - I believe it is not cheap.

jjulio1111 · Post by **jjulio1111** » Mon Jun 18, 2007 5:55 pm

OK, BUT LOOK:

The DVR-S201 is Pioneer's professional AUTHORING DVD-R drive - capable of buring both 3.95 GB and 4.7 GB AUTHORING media, this drive will be capable of creating Master DVD discs for replication using the CMF format.

FEATURES:

AUTHORING Drive - for Professional use
EXTERNAL MOUNT - SCSI Interface
Uses 635 NanoMeter Laser Wavelength
Can write DDP Header Information
Can write Macrovision bits
Can NOT write CSS Encryption Keys
Can create a CUTTING MASTER DISC
Writes DVD-R (DVD-Video) at 1X Speed
Doesnt write DVD-R/W, CD-R or CD-R/W
Complete 4.7 GB disc written in abt. 1 Hr.
Can store roughly 2 hrs of DVD-Video
Compatible with DVD Studio Pro
ONLY uses DVD-R AUTHORING Media!
Burns 3.95 GB OR 4.7GB Authoring Media
CAN MAKE A REPLICATION MASTER

sjj1805 · Post by **sjj1805** » Mon Jun 18, 2007 11:55 pm

If you are going to quote something perhaps it would be an idea to show where that quote originated from. This way others can view the source to see
a. Who wrote it - nothing to stop my wife from creating a web page and she knows nothing about DVD drives.
b. What else was written to qualify the information given.

That aside, please view page 3 of this link
Pioneer DVD-s201 brochure

Like I said previously - we are all Users here exchanging knowledge.
There are no technicians from Pioneer and no engineers from Macrovision.

jjulio1111 · Post by **jjulio1111** » Tue Jun 19, 2007 12:13 am

I think I have to wait for the "DVD Download" format.

jjulio1111 · Post by **jjulio1111** » Fri Jun 22, 2007 3:24 am

I have seen that it is possible to backup DVDs keeping its RCE ( Region Code Enhenced(Enhencement) ) protection. Now I ask: If this is possible, do you know any DVD author program and burner one that could let us author a DVD and burn it/one with RCE ( Region Code Enhenced(Enhencement) )?

sjj1805 · Post by **sjj1805** » Fri Jun 22, 2007 12:16 pm

Region Codes can be set with MediaStudio.
They are not the same thing as Macrovision or CSS.

You need to ask yourself why you would want to do this.
Region codes are for practical purposes a 'Hollywood thing' where a blockbusting film such as Casino Royale, Batman Returns and so on gets released in one Region before another. In some circumstances it does not get released in certain Regions.

Why is this?
The reason is down to money. The Actors and so on involved in these films get paid. Often they are paid royalties - in other words every time the film is shown the people involved in that film get paid a fee.

It may also be that these people get paid a one off set payment to allow their participation in the film to be shown in a certain region. For it to then be shown in another region they will be given another fee.

So this begs the question why would you want to include a region code in your masterpiece. You don't include one just because you are able to do so, you include it for mainly for a financial reason.

It may well be that you have created a video about some technical item such as "Here is how to build a nuclear reactor" and so you may wish to block the film from being shown to countries who would be deemed a danger if given this information. (This is of course being hypothetical - you wouldn't do something like this anyway because it is too easy a system to crack.)

jjulio1111 · Post by **jjulio1111** » Fri Jun 22, 2007 12:40 pm

Well, what I am really trying to do, is do a DVD, a protected one, with few expenses, to sell.

I have got a original Bon Jovi live from London DVD that has a RCE ( Region Code Enhanced(Enhancement)) protection. Whenever we use the AnyDVD to remove this protection, what everyboby usually tries to do, this DVD doesn't play. So, the only way I found to backup this DVD, was keeping its RCE, but this took me a time to figure out this. I think, as I said, that most of the people will just try to use the AnyDVD, with its default options, and give up, at the first problem.

jjulio1111 · Post by **jjulio1111** » Fri Jun 22, 2007 12:53 pm

Font: http://www.dvdafteredit.com/node/1317#comment-1538

Thu, 2007-06-21 22:33 ?ianshepherd
Sometimes this works
Hi jjulio,

Are you asking if it's possible to write a DVD-R with a region code ? The answer is "Yes", but it violates the spec in several ways:

First, the sector size is wrong, as Larry says.
Second, the spec says that recordable discs should not be region coded.
Third, the lead-in information on a DVD-R always contains a Region Code Mask of zero - this is "hard-wired". The value you can change in DVDAE is contained in the VMG ( ie. in the IFO files ) and will be written to a DVD-R with software like Toast or Nero. This means there is a conflict between the lead-in and the VMG information which may cause issues on some players.
HOWEVER (!) despite all these issues, in "the real world", our user's experience shows that most discs written this way will still play fine, and that many players will honour the Region Code. So, the short version is:

You can try it
Technically it's wrong and some players will ignore the region coding - a few may even refuse to play the disc at all but
Often it works fine anyway
Does that help ?

Ian

reply Quote
Thu, 2007-06-21 17:21 ?larryapple
A sector is a sector
In spite of all the other arcane stuff, sizes are always quoted in sectors. The size of the sector depends on where it is recorded. On hard drive or DLT, no CSS, 2048 bytes. On hard drive or DLT with CSS, 2054 bytes. On DVD, 2418 bytes.

So there is never any translation of one sector size to another.

Regards,

Larry