Hi every one and special handshaking Bart.

My question how to make protected CDs against copying?

Thanx

don't you think that knowledge increases if we share it?!!
tHERE ARE SOME SPECIALIZED TOOLS SEARH THE NET..
you have to think that evry process is reversable...

you are right and that's what i'm looking for , knowledge.

If you are looking onto data protection on a CD, you can use scramdisk or Bestcrypt.
They create a single file which acts as a container that is encrypted and the contents are loaded as if it is a virtual drive.
You can choose the size of the virtual drive (thus the container file), so you can have a size that fits on a CD.

You can then burn the file to a cd, and when you want to mount the container and access its contetns, you just type a password. Bestcrypt, ASAIK, uses strong encryption, and it may be illegal at some locations around the world!

You can do any size container on a read/write media only limited by the media capacity, howeve cd size containers are Readonly, unles you copy the contents of the container to your HD!

If you are looking for some other type of data protection or cd content protection, please explain what you are looking for in more detail!

@risolutore
Everyone has the full right to protect his own intellectual property, and maybe this CD contains private or confidential data, and having the option to make protected CD is better than exposing yourself to everyone.

@daikatana
Does ScramDisk or BestCrypt have a DOS interface ?
If so then we can add some special module to enable booting from the this copy-protected CD.
The trick here is that we should not protect the bootable part (the part that contain ISOLinux/BootScriptor and the bootdisks), and use this part in accessing the protected area.

I checked the Bestcrypt site and found they have an old version (which is now free) for use with DOS/Win3.1x.

Check out: http://www.jetico.com/index.htm#/bcrypt.htm

and the download page as well...

You have to do your encryption/decryption under DOS, therefore I foind it a bit limited. If you are working under win9x/nt/2k, and and have your data ready for encryption, you would rather prepare your container file and dump the data in the environment you usually work (w9x/nt/2k).

It will be foolish to boot into DOS, access your data, and then dump the data into the encrypted container in DOS. But then that's me... Since the utility is free for DOS, I guess it is something handy.

I am not sure if the container file you create will understand any filesystem other than FAT16 though...

Once your data files are in the container (which is basically a big 600+ mb file), then burn the file to your cd in your OS. You can make your cd bootable so that will not affect the container file, and may be put in the DOS modules for the BestCrypt, so that when you access your CD under DOS, you can mount and open the container file!

The main problem I see is that quite many of your data will be generated with new Apps, so it may be limited use to be able to access them under DOS, since you may not be able to work or even read the data files (unless they are RTF, TXT, etc standard format files)!


For what it's worth, if anybody feels like testing it, the software is there.


Scramdisk is now called drivecrypt, and commercial. Worse it is only for Windows platform... no DOS version...
So strike that out!

There is another software that has the same concept (encrypted container files), its name is SafeHouse http://www.pcdynamics.com/SafeHouse/Download.asp

You can use the Windows version for normal using and use the DOS drivers from earlier versions to access these container files (the restrictions are that you have to use FAT16 in the container files and use an encryption algorithm that was available in the previous version).

The current version is 2.1 (the only version compatible with Windows xp), to get the DOS drivers download the 1.8 version (search in Google or Simtel for an old version).

I'm so glad to have Doctor xp discuss this subject.


I took time to test "Bcrypt" & "Safehouse", here are the results:

Bcrypt = does not work with Fat32, but i didn't test it on Fat16
SafeHouse = ok
Conclusion = interesting.

But, i'm sorry this is not what i'm looking for.

I want to give my friends my CD to read and execute its content, and later, if they ask me why they could not make copies of it, i'd answer them: "Oh, sorry i forgot to tell you that you cannot copy the CD to the HDD or burn it to another CD , but i have an open CD from witch you can make copies "

I hope you understand what i mean.

Thank you all

Now this is a problem, most of the tools to make copy protected CDs don't allow booting from the CD, and make non compliant ISO9660 CDs.

But the real problem is that all (home-made) schemes can be bypassed by using BlindRead/BlindWite or any copying tool that have copy protection in mind, so a geek friend can return on you by copying your CD and saying "it wasn't a problem, I just used a simple secret software ".

As Dr XP said... it is very easy to bypass the protections schemes... even the commercial protection schemes...

Here is an example:

I bought a computer book that came with an electronic version (PDF file) on a CD as well. You can install the book from the CD and read the book. If you don't have the original CD in your CDROm drive you cannot open the book, even if you have copied the PDF and other files to your HD. Since the book was only 50 mb (The CD had total of 60 MB or so of data on it), I made an ISO with Blindread, downloaded and installed Daemon (virtual CD/DVD drive proggy), and mounted the ISO image. Instead of carrying the CD, I have the contents of the complete CD as ISO file (about 60 MB) on my HD, and can now read the book!

With Daemon tools you can mount any CD/DVD image file, as long as you have used proper tools and made a copy of the original media as close to the original copy using blindread, clonecd, whatever. You can bypass Securma, laserdisc, etc protection methods...

As long as you have an original CD and you are doing this for backup purposes, no problems, otherwsie I think it is illegal, so that's your responsibility how you use the information, and what you do with it!

As you can see even the commercial systems have weaknesses that can be bypassed!

I used the above method for some games, when I need to have 2 or 3 discs of the game available at all times, and reading the stuff from a second HD, where the ISO image sits is faster than accessing the original CD on a CDROM drive, so that gives me better perfromance, and no need to switch discs while playing!

I am also surprised with your claims about FAT32 for Bestcrypt... I have used some bestcrypt containers formatted with Win98 FAT32, and can still open and read the container files under Win2k... You sure you have not done something wrong?

@daikatana


you are right but the free bcrypl (for dos & windows) does not.
you cannot create a new container because the hold drive list from which you can select a drive is empty/nada.

@doctor xp

But i don't have a greek friend

@Lab6

Himmm... OK! I'll bite it... Here's a quick and dirty solution...

Make a small partition of about 750-850 mb on your drive and do not use the "support large disk..." option when FDISK is started to make the parittion. If you have other tools that you can use to make a partition, no problem.

Just make sure the new partition is FAT16.

Now you have a partition that can contain a Bestcrypt container with a size suitable to CDROM capacities (650 MB - 700 MB, and a bit extra)...
Create your bestcrypt container in this partition, making sure your container file size is not too large to fit on a CDR.

DUmp whatever stuff you want to burn into the container file, close the container (dismount), and burn the container file to CDR!

Happy...? ;-)


I personally did not play with the freeware older version for DOS/Win, but test driven the demo of the later commercial versions for a while, so I was confused with FAT16/FAT32 issue you had experienced!

Can we make DVD/VCD a PROTECTED CD?

I mean can we included copyright Protection..??for that..

Any tools for making a DVD/VCD protect?

If u know pls suggest me that tools??even if possible the Site too?

Chinthup.

They said that dvds had good protection on them...turns out they were dead wrong...no cd is copy protected...that's just a fact...heh...

If there is a will to break it, there is a way to break it...

Yaa dude,i know that we can break the CD protection...rite , but u didn't ans my Question Yet... i said is there any way we can protect...the DVD/VCD?? I am not talking about breaking the protection

Some level of copy protection is built into most of the multiboot cd's around here.
The Size of the actual contents of the CD far exceed the size of the medium it was written to. For example, an 8n1 XP Cd, if copied to your hard drive, will need almost 3gb's worth of free space to copy itself to. This is because when the iso is created, links are inserted to point to file that are exactly the same. I haven't found an easy way to copy one of these yet(other than from the original iso), since any copy will try to put all the files on the cd, even if there are 20 of the same files. And if you use CD-Shell to hide the contents of your boot folder, it would be extremely difficult to copy and keep the bootable portion intact. The Multiboot DVD I am currently working on is over 15GB's (before compression) at the moment. Anybody know of any tools that can get around the things I just mentioned?

Any programs that can create an image of the CD can copy the first two methods you described (x-in-1 & cdsh script hiding).

Unfortunately, I don't have too much experience with any DVD burning techniques yet, but if that 15GB is still a single-sided, single-layered DVD, then, like above, any program that can create an image of the DVD can copy this.

CWP