how will i make my cd uncopiable

This is a discussion on how will i make my cd uncopiable within the C Programming forums, part of the General Programming Boards category; I want to make my cd-rom uncopiable. Can any one suggest me how to go about. thanx, Murali...

  1. #1
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    how will i make my cd uncopiable

    I want to make my cd-rom uncopiable. Can any one suggest me how to go about.

    thanx,
    Murali

  2. #2
    Registered User Nutshell's Avatar
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    I think u can't. Or just make some scratch marks on it, think that'll work. Or encrypt the files on the cd. Depends on why u want to do this for.

  3. #3
    Code Goddess Prelude's Avatar
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    I believe you can write some security data to the disk that is read first by a copier which will cause the copy to fail or corrupt the copied disk. But I'm not sure.

    -Prelude
    My best code is written with the delete key.

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    I don't think that it is possible. I never found a disk that I can't copy. Some of the newer hardware might have some copy protection built into it. I know that Kylie Minouges(sp) new CD in england had copy protection so it could not be copied on CD writers that supported that standard.
    Last edited by Barjor; 04-17-2002 at 10:56 AM.

  5. #5
    Im a Capricorn vsriharsha's Avatar
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    Dear Friends,

    Copy Protection does exist......

    I have personally checked CD's that are copy protected. This is how they behave...

    I was looking at a rhyms CD (for the purpose of duplicating it). It had an installer for it. When I tried to copy the whole CD into my hard drive, it copied all the files but one. And this was supposed to be the most crucial file. When I try copying it manually, it says ERROR READING FILE... (windows error)
    The same error repeated on many systems (I tried even different OS's). But If I install the stuff from the CD, then the file is detected and the installation goes off smoothly. After installtion also, when ever i want to run the S/w, it checks for the CD (for the file to be more specific). If it cannot find it then it says... Put the CD in...

    Everyone are free to draw their own conclusions abt it...But here is what I guess...

    The burning of the CD was done with a deviation from the normal procedure. The TOC entries for the last file have been modified (or must not have been entered at all). (that is the reason the OS cannot find it nor the CD-burning S/w when I want to diskcopy the cd). The actual location of the file must be known to the installer program and the main EXE file, so, they retrieve the file from that part of the CD and work.

    Post in if U have a better explanation (Im sure most of u would).

    Regards,
    Sriharsha.
    Help everyone you can

  6. #6
    Patent Pending GSLR's Avatar
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    Cd Burning

    Hi

    Well it seems that many people try to stop the copying of a cd and as soon as they bring out a method to stop the cd copying, an alternate method is made to copy the cd.

    Ive got a buddy that was really good at finding software that did this ,hes in nigeria at the mo commissioning a job, and as far as I know there hasnt been a cd made that he couldnt copy yet.

    I mean everyone used to think that Sony Playstation games were uncopyable as well as DVDs.

    I think the thing to remember is that if there is a will there is a way !!

    Also if the encryption is software engineered , it can most certainly be reversed engineered or stolen !

    So I dont think theey will win here.

    Anyways this is just my view

    Cheers
    And To All Those Opposed, WELL !!!
    >Deleted< " Looks like a serial no."

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    All copying really is is to move 1's and 0's. Can't really be that complicated can it?

  8. #8
    ATH0 quzah's Avatar
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    Originally posted by vsriharsha
    Dear Friends,

    Copy Protection does exist......
    Copy protection only exists to keep the honest people honest. People that want to copy CDs will find a way to do it.

    Commonly, when a CD is pressed, they write a section of the CD "incorrectly", and their copy protection is that when your reader goes to read the "incorrect" location, it gets an error due to the type of read it does. Basicly it would be like if I had a file, and in the middle of it I wrote the "EOF" tag. Your C program would think it reached the end of the file, when in fact it hadn't. (Assume that is possible, that is in effect the way the copy protection works.)

    However, any protection scheme will be broken. Most (all?) CDs can be copied if you have the know-how.

    Quzah.
    Hope is the first step on the road to disappointment.

  9. #9
    Im a Capricorn vsriharsha's Avatar
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    [QUOTE]
    Copy protection only exists to keep the honest people honest. People that want to copy CDs will find a way to do it.

    Commonly, when a CD is pressed, they write a section of the CD "incorrectly", and their copy protection is that when your reader goes to read the "incorrect" location, it gets an error due to the type of read it does. Basicly it would be like if I had a file, and in the middle of it I wrote the "EOF" tag. Your C program would think it reached the end of the file, when in fact it hadn't. (Assume that is possible, that is in effect the way the copy protection works.)

    However, any protection scheme will be broken. Most (all?) CDs can be copied if you have the know-how.

    Quzah.
    [\QUOTE]

    Well well,
    I said that Copy Protection does exist... but never denied the fact that it can be broken... You are right Quzah... the scheme i described was followed by one such copy protectors (so called) and later I could successfully duplicate that CD too.
    Its basically that u should know the How-To stuff and u r through. We even have (in the net) S/w's that crack the DVD Zone Protection schemes (so u can run DVD's from any zone any number of times).

    Regards,
    Sriharsha

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    quzah is correct. The common form of copy protection is to write data to a section of the disk "incorrectly". However, if your burning software will allow you to not correct errors, you stand a chance of getting a valid copy.

    Another option is to create an image of the disk. For instance, Nero Burning Rom has an option called "Burn Disk Image" which pretty much takes an exact picture of the CD from start to finish and saves it as an .iso file (actually an .nrg file - but they're the same). When you go to burn your image, disable the "correct errors" option and you should be in "business".

    Another common way to "defeat" copy protection is to use a black felt tip marker and draw over the track which holds the invalid data. Your reader will skip right by it... I saw this on www.winamp.com:Copy Protection Defeated with Felt Tip Pen

    Xeno
    Welcome to the funhouse, where strange mirrors reflect the faces of insanity.

  11. #11
    Quietly Lurking
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    The Infinite Monkey Therom
    Put an infinite number of monkeys in front of an infinite number of typewriters and give them an infinite amount of time and eventually one will type the complete works of Shakespeare.

    or...
    Give an infinite number of hicks an infinite number of shotguns and put them in front of an infinite number of stop signs and you will eventually find the complete works of Shakespeare in brail.

    Just as there is no such thing as an unhackable computer there is no such thing as a secure CD. The point of copy protection schemes are the same point as firewalls and such. To make it take enough time that whoever is trying to brake it doesnt have the time or the will to keep working on it and moves on to something else.

    and also cd's protected by the means you have mentioned earlier are not actually CDs CD is a copywright owned by Philips. Philips has said that these are not CDs as they do not conform to the Philips red or orange book standards, and they also plan on releasing a cd burner that will copy CDs that use this method of copy protection.

    ----------------------------------------------------
    "On a long enough timeline the survial rate for everyone drops to zero" -Fight Club

  12. #12
    Registered User stautze's Avatar
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    To make the cd so none could copy it and use it just encrypt it. Then only peolpe with the key could use it. Sort of like pgp does an email (the CIA can't even read bin ladins email because he uses pgp). This is very effective.
    'During my service in the United States Congress, I took the initiative in creating the Internet.' - Al Gore, March 9, 1999: On CNN's Late Edition

  13. #13
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    pgp

    Just so you know stautze the NSA can,has, and does crack pgp encryption. Just takes a fair amount of time and processing power. Their real problem is that they dont have enough people who speak arabic. That and there is no reason to 1 catch Bin Laden or 2. tell us if they did catch him, but thats a completly different thread

  14. #14
    Guilty Spark 343
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    One moment while I check the archive... hmm mmm hmmm hmmm hmmm mmmmm.... I see your armor is type 2, Reclaimer... hmmm.hmmm mmm......

    Ah, here it is. Index 17382 covers 2 of the more popular methods of copy protection--

    1) corrupt data/encryption

    This method is already discussed in a previous post.

    2) overburn

    Use an 80minute CD and overburn critical data out beyond where most CD players can read.

    This method was common once, but has lost popularity due to the fact that most readers and now handle 80minute CDs, and many writers support overburn capability.

    Electronic Arts long used this method, for such titles as Heavy Gear II, and others.

    -------

    Reclaimer, there are other methods, but most rely on physical media changes, not available to you unless you have a CD pressing plant at your disposal.

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