Will the protection be destroyed ?

[VeNorm]

Hello,

i play around with portections of DVDs (old css) and ArcCos/RipGuard. So my question is, because i am actually at work and not at home, if I creates an image of the dvd with alcohol 120% will the protection be in the image file (so that i can use dvdfab,... with the image file) when i mount it or is it destroyed? Its very terrible to go through all dvds, so with images it would be easier to handle that.

Thanks.

bye,
VeNorm

[dialysis1]

When you rip a DVD, the protection is not on the rip.

[VeNorm]

How do you define ripping dvds?

Do you mean when i make an image with Alcohol 120% the protection is detroyed or what?

"Ripping" I define as ripping movies like coping with dvdfab and remove the protection.

[unskinnyboy]

How are you creating the DVD image? Are you trying to use Alcohol 120% by itself, or in conjunction with AnyDVD? The former method shouldn't work because Alcohol 120% won't process CSS protected DVDs. But if you are using it with AnyDVD, then the copy protection should be stripped, and it should work.

Ripping is usually defined as the process of decrypting the encrypted VOBs and getting them onto your hard disk. In those terms, Alcohol 120% can't be considered as a "Ripper".

Go home, try it out first, and then ask questions.

[Maccara]

I understand what the OP is after, and am interested in this question too.

_Not_ having alcohol handle CSS decryption, is _precisely_ what the OP wants.

To rephrase the question:

Do imaging software make perfect images of DVDs, i.e. preserving the protection? (so that it might possibly be later ripped with another software which atually handles CSS decryption while the image is mounted etc)

I suspect this works with CSS and other simple protections (which don't introduce intentional defects on dvd-layers), but I do not have a clue if it is possible with newer protections.

Edit: To make a distinction, I don't know if alcohol actually refuses to image a dvd which has copy protection present, which would rule that software out. But lets then focus on some other imaging software which does not care of the contents.

[Sharktooth]

you cant simply make and image and record it to another media... it wont work... it's protected/encrypted.

[setarip_old]

Hi!

The following thread, that I started some time ago, may provide some insight:

http://forum.doom9.org/showthread.php?p=964482#post964482

[unskinnyboy]

I understand what the OP is after, and am interested in this question too.

_Not_ having alcohol handle CSS decryption, is _precisely_ what the OP wants._Did_ _you_ _read_ _anything_ _I_ _wrote_ _above_?
...Alcohol 120% won't process CSS protected DVDs...

Any other similar software processing DVDs with CSS or any other copy protections would be just shooting themselves in the foot, making themselves sitting ducks to be sued by MPAA and the like.

[Maccara]

_Did_ _you_ _read_ _anything_ _I_ _wrote_ _above_?

Sorry for the misunderstanding.

I wasn't sure if you were referring to the fact that Alcohol won't work because it doesn't decrypt (i.e. not useful as-is) or if it completely refuses to make a 1:1 copy of a copy protected DVD. (I don't own Alcohol, so I didn't know - now I do)

@setarip_old: Thanks for the very insightful thread!

I was mainly interested, that IF a software allows to make a 1:1 copy (ignoring possible legal consequences) should that 1:1 copy be perfect (ignoring the fact that it would be "slightly" difficult to burn back anywhere bypassing dvd-r recognition etcetc what "they" have in place nowadays) or have the copy protections introduced the same thing as for example some games, i.e. physical flaws on the media, which makes 1:1 reading preserving the protection impossible (or very difficult) altogether.

That other thread answers most of the stuff I was wondering.

[VeNorm]

Hi,

i am not sure wheter you understand my question. I don't want to make perfect funcional copy

What I want is, because i am a developer and testing some dvds, so I don't want to change every dvd.

I only want to make an image which have the protection like ArcCos or CSS and so on included And THEN I want to take DVDFab Decrypter to decrypt the DVD.

1 Hour and I can test some things with alcohol 120% and I also will test ImgBurn.

[FoxDisc]

I only want to make an image which have the protection like ArcCos or CSS and so on included And THEN I want to take DVDFab Decrypter to decrypt the DVD.

A conventional DVD uses CSS to encrypt it. To decrypt it, you need CSS keys that are stored in the lead-in area on an optical disc. As far as I know, the lead-in area is not copied by programs like Alcohol. I admit that I'm not sure what happens if a mounted image from a virtual drive receives a request to read the lead-in area. If anyone knows, please comment.

I'm not aware of any virtual drive program that reads/stores and simulates the lead-in area. You can't burn to that area on a DVD disc with a burning program like Nero either.

As a result, there's no way I know of to preserve CSS encryption and decrypt later. If you copy the encrypted files, you would need the CSS keys in the lead-in area and they are only readable from the original disc. I suppose an imaging program could simulate the lead-in area (this was discussed in the HD-DVD AACS threads), but I don't know of any that do.

[setarip_old]

@VeNormI only want to make an image which have the protection like ArcCos or CSS and so on includedThen, again, click on the link I've provided in post #7 of this thread.