CSS protected DVD grabdisc question

mgoddard1 · **Joined:** Thu Feb 02, 2006 3:55 pm **Posts:** 6

Hi,

I'm a registered owner of the starburn sdk and I have a few questions concerning the grabdisc C console example. My goal is to make an image of a css protected DVD with the css keys intact.

1) Will the standard StarBurn_CdvdBurnerGrabber_GrabDVD() call do this?
2) The only purpose of StarBurn_CdvdBurnerGrabber_AuthorizeDVD() is to disable CSS protection so that the vob files can be copied but the vob files will still have their css keys, correct?
3) Is calling StarBurn_CdvdBurnerGrabber_AuthorizeDVD() necessary for grabbing a DVD using StarBurn_CdvdBurnerGrabber_GrabDVD() for a CSS protect disc, that is if StarBurn_CdvdBurnerGrabber_GrabDVD() will grab a CSS protected disc in the first place?

And concerning the starburnx library will the GrabDisc method in it grab a css protected DVD with the css keys intact?

I've gone through the documentation but how CSS protected DVDs are handled doesn't seem to be mentioned.

Thanks,

Matt

anton (staff) · **Posted:** Fri Jan 25, 2008 8:54 pm

It's absolutely CRAZY idea to embedd CSS ripper into any commercial toolkit...

mgoddard1 · **Joined:** Thu Feb 02, 2006 3:55 pm **Posts:** 6

I wouldn't put a css decrypter in a commercial SDK either. Actually I'm not looking to remove the CSS keys from the CSS protected DVD, I want to get an exact image of the DVD with all the CSS protection in place.

anton (staff) · **Posted:** Fri Jan 25, 2008 9:27 pm

You cannot. CSS title keys are stored not with the user-accessable data sectors. StarBurn will rip CSS protected movide into MDS (and Alcohol and Daemon Tools will mount this image and play it) but there's no way to burn it...

mgoddard1 wrote:

I wouldn't put a css decrypter in a commercial SDK either. Actually I'm not looking to remove the CSS keys from the CSS protected DVD, I want to get an exact image of the DVD with all the CSS protection in place.

mgoddard1 · **Joined:** Thu Feb 02, 2006 3:55 pm **Posts:** 6

That's what I'm looking to do, create an exact disc image but not burn it to a DVD. So it sounds like the grabdisc() will grab the raw datasectors with the keys in them when it makes an image. Thank you for your help Anton and I apologize if I wasn't clear on what I was looking for.

Thanks,

Matt

anton (staff) · **Posted:** Fri Jan 25, 2008 9:57 pm

The keys will be stored in MDS file, they are NOT inside the image.

mgoddard1 wrote:

That's what I'm looking to do, create an exact disc image but not burn it to a DVD. So it sounds like the grabdisc() will grab the raw datasectors with the keys in them when it makes an image. Thank you for your help Anton and I apologize if I wasn't clear on what I was looking for.

Thanks,

Matt

dougstrach · **Joined:** Mon Oct 27, 2008 7:28 pm **Posts:** 3

anton (staff) wrote:

The keys will be stored in MDS file, they are NOT inside the image.

mgoddard1 wrote:

That's what I'm looking to do, create an exact disc image but not burn it to a DVD. So it sounds like the grabdisc() will grab the raw datasectors with the keys in them when it makes an image. Thank you for your help Anton and I apologize if I wasn't clear on what I was looking for.

Thanks,

Matt

Anton,

I'm testing with the code that Matt created for us and am having difficulty with the MDS files that were created by grabdisc(). While you say the title keys are in the MDS file, I'm unable to mount and playback this file using Alcohol 120% and a CSS licensed player. Shouldn't this be the expected outcome from this process?

Thanks,
Doug

anton (staff) · **Posted:** Tue Oct 28, 2008 7:34 pm

AFAIK by default Alcohol 120% and Daemon Tools have CSS turned OFF. Please contact their vendors for more details before we'll proceed.

dougstrach · **Joined:** Mon Oct 27, 2008 7:28 pm **Posts:** 3

Anton,

I'm sorry, but this is very confusing, and I don't see the point in contacting Alcohol or Daemon would make any difference. I'm looking to Starburn to support your product.

We purchased a license based on the following assumptions which we have not been able to make work. Can you tell me what we are doing wrong?

We could create an MDS file which included the title keys for encrypted discs so that CSS protection would not be compromised and a complete image of the disc could be accessed with Alcohol 120% or Daemon Tools.

I've created MDS files with Starburn and mounted them using Alcohol 120%. When I try to access this mounted drive, the disc is scrambled. Programs such as AnyDVD show the drive as not having any disc encryption included.

Who do I contact for product support in order to get this resolved? In your earlier responses to Matt, you indicate that the title keys are being stored in the MDS files. If they are, why wouldn't Alcohol 120% mount and support these? Are you saying that your files are correct, and we just need to get a version of Alcohol that can support it?

A little clarification to assist us in this issue would be very much appreciated.

Thanks,
Doug

anton (staff) · **Posted:** Tue Oct 28, 2008 8:43 pm

You don't understand... Daemon Tools and Alcohol 120% have CSS emulation turned OFF by default. So even if you pass correct MDS image with CSS keys - it will not work. That WAS true for quite a time. I'm not sure about current status (is this feature turned ON by default or how is it user controllable) that's why I've asked you to contact Daemon Tools & Alcohol staff about THEIR software status. OK, no problem, I'll ask them myself.

If their own images work fine (assuming you have the same disc inserted) that's strange and we'll check this out. MDS parser/grabber code did not change for years and you're the first one who says it does not work. OK, we'll check this out tomorrow.

Is everything clear now?

anton (staff) · **Posted:** Tue Oct 28, 2008 8:46 pm

Talked to Daemon Tools - CSS is *enabled* now. So that's really something either with our code or with DT driver.

Did you use our GrabDisc sample to create MDS?

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CSS protected DVD grabdisc question

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