Below is the original SoftDVD crack message....
Originally it was posted in alt.cracks, isn't there anymore but I suppose if someone asked there it would get reposted rather quick.
BTW: Reportedly it works if you have the right versions of SoftDVD.
yes, it works with Compaq's ATI-RagePro chip and Softpeg
combination shipped until at least 1 month ago.
Good thing Haber fled Zoran in time!
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>From: nobody@REPLAY.COM (Anonymous)
>Newsgroups: alt.video.dvd
>Subject: SoftDVDCrack
>Date: 4 Nov 1997 06:05:39 +0100
>Organization: Replay and Company UnLimited
>Message-ID: <63maf3$1u4@basement.replay.com>
>NNTP-Posting-Host: basement.replay.com
>X-XS4ALL-Date: Tue, 04 Nov 1997 06:05:42 CET
>X-001: Replay may or may not approve of the content of this posting
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>X-URL: replay.com
>Lines: 107
>Xref: chaos.crhc.uiuc.edu alt.video.dvd:64380
A few days ago some guy on IRC was distributing the
note below, claiming it would be possible to use
SoftDVD (a software DVD decoder by a company named
Compcore) to duplicate copy protected DVDs. I was very
sceptical. But since I happened to have the required
equipment (MMX PC with a DVD-ROM) I actually tried it.
Works great! I just played part of 'Species' off a CD-R.
Thought people might be interested to see what's possible
these days. And no: I will NOT post ccmpeg.dll.
JLF
=====================================================================
SoftDVDCrack is a little add-on utility for SoftDVD. it allows
u to make descrambled copies of your favourite DVD titles.
how it works? SoftDVDCrack first uses two exported entry
points in ccmpeg.dll (part of SoftDVD) to unlock the
disc and a specific title. then it reads each sector of
the title, calls SoftDVD's descrambler module, and finally
writes the descrambled sectors to a file. this file no longer
has copy protection. It can be played with any MPEG2 decoder.
what is it good for? u can use SoftDVDCrack to make personal
backups of your own DVDs. almost anything else, like copying
the files to CDs and distributing them, is most likely illegal.
don't do it!
in addition to being a handy utility, SoftDVDCrack shows how
easy DVD software decoders make it to bypass DVD scrambling.
browsing thru media coverage of DVD copy protection i assumed
software DVD would have to have some tricky protection against
accessing decrypted data if they wanted to get a CSS licence. this
looked like a nice challenge. i was a bit disappointed to see that
SoftDVD actually has no protection at all against this kind of use.
It was a matter of hours to locate the descrambler entry point.
there may be some protection in SoftDVD attempting to make it
difficult to analyse the actual descrambling algorithms. but who
would really care about how the algorithms work. one can simply use
SoftDVD's descrambler as a black box that does its job on any PC.
And it can be much more conveniently duplicated than hardware
descrambler chips.
Instructions:
1. Get an MMX PC with Windows 95, a DVD drive, and a DVD disc.
1. Get the SoftDVD DLL ccmpeg.dll (date 8/13/97, size 539136 bytes).
It ships with some COMPAQ PCs (4840, 4850).
2. Get msvcrt.dll (Microsoft Visual C runtime library). It is
installed as part of many program packages, for example
Internet Explorer 4.
3. Copy ccmpeg.dll and msvcrt.dll to \windows\system.
5. Compile the program listed below and run it in a DOS box.
/** SoftDVDCrack.cpp **/
#include <windows.h>
#include <stdio.h>
typedef DWORD (WINAPI *PFNValidateDisk)(DWORD);
typedef DWORD (WINAPI *PFNValidateTitle)(DWORD);
typedef DWORD (*PFNDescramble)(DWORD title, PBYTE address, DWORD count);
BYTE buffer[4096];
int main(int argc, char *argv[])
{
PFNValidateDisk ValidateDisk;
PFNValidateTitle ValidateTitle;
PFNDescramble Descramble;
HINSTANCE hCC;
FILE *fdin, *fdout;
DWORD sector, nsectors, title;
CHAR inputfile[256];
if(argc!=5) {
printf("SoftDVDCrack input_path title_number number_of_sectors output_file\n"
"(example: SoftDVDCrack d:\\video_ts 1 -1 movie.mpg)\n");
exit(-1);
}
sscanf(argv[2],"%d",&title);
sscanf(argv[3],"%d",&nsectors);
hCC=LoadLibrary("ccmpeg.dll");
if (!hCC) {printf("ccmpeg.dll missing\n"); exit(-1);}
ValidateDisk=(PFNValidateDisk)GetProcAddress(hCC,"CCMPEG_Validate_DVD_Disk");
ValidateTitle=(PFNValidateTitle)GetProcAddress(hCC,"CCMPEG_Validate_DVD_Title");
if (!ValidateDisk||!ValidateTitle) {printf("link failure\n"); exit(-1);}
Descramble=(PFNDescramble)((PBYTE)hCC + 0x2ef40);
if(*(PDWORD)Descramble!=0xb80cec83) {printf("wrong ccmpeg.dll version\n"); exit(-1);}
if(!ValidateDisk(0)) {printf("cant't validate disc\n"); exit(-1);}
if(!ValidateTitle(title)) {printf("cant't validate title\n"); exit(-1);}
if(title==0)
sprintf(inputfile,"%s\\video_ts.vob",argv[1]);
else
sprintf(inputfile,"%s\\vts_%02d_1.vob",argv[1],title);
fdin=fopen(inputfile,"rb");
fdout=fopen(argv[4],"wb");
if (fdin==0||fdout==0) {printf("file open failure\n"); exit(-1);}
for(sector=0;sector!=nsectors;sector++) {
if (!fread(buffer,2048,1,fdin)) break;
Descramble(title,buffer,1);
if (!fwrite(buffer,2048,1,fdout)) break;
}
fclose(fdin);
fclose(fdout);
return(0);
}
/** SoftDVDCrack.cpp **/ |
