VCD/SVCD Copy Protection - protected against IsoBuster

Mateusz Matusiak

Today is a great day I must say

OK, like in the topic. I have found a nice way to protect VCD/SVCD against the best VCD/SVCD copy protection breaker - IsoBuster.

The protection isn't perfect. It sometimes doesn't work on the high class VCD/DVD players. But works fine (as far as I have tested) on cheaper players. The main idea behind the copy protection is very simple.

As we know there are differences in PC CD/DVD drives and the stand alone players. We are going to use that difference in this protection.

Lets say that you have a VCD/SVCD with one movie on it. And lets say its length is 60 minutes.

The main idea is to :

- add one dummy track (can be video) to the end of the compilation
- cut the Lead-out time to 1/4 or 1/8 of the total movie len.

This method really works!


Here is a simple tutorial how to do it - no advanced knowledge is needed to create such protection. Maybe I'll make an application that will do some of these steps for you... Time will tell. Now back to the steps:

1) You will need your movie and a sample movie (10-20 seconds) as the dummy track.

2) Run nero and create a compilation. Add your main movie as the first track and the dummy movie as the second one.

3) Burn the compilation to the image file

4) Mount the image using a Virtual Drive (most popular is Daemon Tools) and create a CloneCD format image (.ccd / .img / .sub) using CloneCD or Alcohol (using Alcohol please remember to select the CloneCD image format)

5) Goto the directory where you have created the image and open the .ccd file using a text editor.

6) Now here is the most "complicated" part of the protection from all of the current ones

You will have to goto [Entry 2]. The entry that I have posted here may not look the same like your but the method of modification is the same

[Entry 2]
Session=1
Point=0xa2
ADR=0x01
Control=0x04
TrackNo=0
AMin=0
ASec=0
AFrame=0
ALBA=-150
Zero=0
PMin=74
PSec=31
PFrame=9
PLBA=335184


The 4 last lines are the most interesting for you.

PMin=74
PSec=31
PFrame=9
PLBA=335184

This describes the time of your VCD/SVCD. To protect it we can make the size equal 1/4 (about 1/4) of the current values. So it will look something like this after modification:


[Entry 2]
Session=1
Point=0xa2
ADR=0x01
Control=0x04
TrackNo=0
AMin=0
ASec=0
AFrame=0
ALBA=-150
Zero=0
PMin=20 // just changed from 74 to 20 minutes
PSec=31
PFrame=9
PLBA=335184


And after this modification please save the changes to the .CCD file.
Now you can burn your image using CloneCD to a CDR.

Now how does this protection really work.
Like you know all of the 1:1 RAW copy software (CloneCD/ Alcohol / BlindRW etc etc...) read the toc and read the CD using the information from it. Your toc (your VCD/SVCD len) in the protected VCD/SVCD will be 20 minutes while in fact the entire movie is recorded. The cheap VCD/SVCD players will simply play the movie without taking the look at the Lead-out value. As a result the movie will be played without any problems. Also IsoBuster will not be able to extract your movie (or Track) becuase it fail to read after the Lead-out area ]:-> CloneCD and other 1:1 copy software will copy only 20 minutes of the VCD/SVCD. The protection can be improved a bit... but I leave this to your imagination...
Maybe in some time I'll post my modifications for it.

Hope that this was useful for you. I'm open to any feedback.

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lovelyplanet

Hi Pls Can u send me link in rapidshare.com