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View Full Version : how do i protect my DVD's?


cypher007
25th March 2004, 11:10
i would like to add copy protection to my own DVD's, which i have authored. are there any programs to do this?

jimmy basushi
25th March 2004, 13:23
i assume there would be, but i would also assume you would have to pay big bucks for the 'rights' to use thier copy protection

Arky
25th March 2004, 15:31
If you mean that you require your titles to be CSS formatted, then you will not be able to achieve this on a DVD-R, since the area reserved for the encryption keys is not possible to write to. Generally, CSS formatting would require that you format your project to DLT, inserting the appropriate bit-spaces for the CSS keys, then send the tapes off to a replicator, whereupon they will insert the CSS encryption keys into the bit-spaces you provided.

Of course, this will not prevent anyone with an internet connection and a PC from downloading a ripping util' and defeating the CSS encryption on your disk...


Arky ;o)

sarahjh69
25th March 2004, 17:27
write your data on PRINCO dye based media
no one will ever be able to copy it!

Arky
25th March 2004, 18:08
"snigger!" :D


Arky ;o)

cypher007
26th March 2004, 13:22
im not looking to css them, just stop your avarage joe with a copy of nero from doing a disc to disc. i wondered if any of the free cd protection systems would help. the other thing ive found is if i burn using udf only i cant read the disc in my dvd-rom anymore, but it plays in a standalone, could i use this approach? also is there a way of adding macrovision?

semi-black
26th March 2004, 13:36
Yeah as it's already been said you'd need to format to DLT but there are lots of apps that support copy protection. The big boys, Scenarist, Creator, Maestro etc but dvdsp and encore do also.

You won't have to pay to use CSS the rep house do. But you will per unit for Macrovision.

[sb]

Eyes`Only
30th March 2004, 05:05
LOL good one, Sarah.

Pyscrow
30th March 2004, 20:24
Originally posted by cypher007
i would like to add copy protection to my own DVD's, which i have authored. are there any programs to do this?

To be honest, read through this site, do you see many posts where people complain they can not "BACK UP" a DVD?

Its not worth your trouble trying.

LB
31st March 2004, 00:20
is to register with the copyright office which costs $30, and place a little (c) along with your first name somwhere on the disc, and leave it at that. If you find someone has copied the disc, you will then be entitled to statutory damanges which are on the order of $100,000 minimum I believe.

That's what I'd do. :D

Arky
31st March 2004, 04:02
Of course, along similar lines, you could register (http://www.ppluk.com/) an International Standard Recording Code (http://www.ifpi.org/isrc/), unique to you, and stripe this ISRC code throughout your DVD project's VOBs. Again, it's not bulletproof, but it does offer you a legal boundary, of sorts, against copying.

It's not protection, but it's a way of identifying your material if anyone needs to check if it's been copied without authorisation.

There is more than one way of striping your VOBs in this manner, but here (http://www.tfdvdedit.com/public/92.cfm) is one method.


Arky ;o)

Eyes`Only
31st March 2004, 04:12
Yeah, now go out and buy yourself a Mac just so you can do that! LOL! On the plus side, I hear they make for very interesting bowling tournaments...

Arky
31st March 2004, 04:17
I did say there is more than one method, most of which, no doubt, are on the Windows platform - but probably only proprietary systems for the purpose...

Then again, let's face it, if the MPAA can't successfully protect their stuff, then what chance does the little guy have? I'm sure many of the Hollywood authors frequenting Doom9 have pondered this same problem at some point ;)


Arky ;o)

Eyes`Only
31st March 2004, 04:26
I agree, it's about as pointless as copy-protection on a PC Game CD.

keithmac
5th December 2004, 12:36
Just digging this thread up because I`ve been searching for the same answer, is there no way of adding errors to the disk, which won`t affect it`s playback on a standalone dvd but will stop a computer drive from reading it? I`ve tried to back up Hollow Man (Uk) and half way through the 2nd vob the pc drive will not read the disk, but in a standalone dvd player it`s fine?

Burning in UDF only sounds interesting, what program do you use to do that?

On a side not, Xbox games need to be converted into an iso first then burned on the pc drive, but as far as I`m aware the drive can`t read them afterwards due to the format, could there be a program about that could create such iso`s for UDF dvd`s?

LOL at the Princo answer!

keithmac
5th December 2004, 13:15
Just burnt a UDF only dvd, plays fine on the pc?

mpucoder
5th December 2004, 14:24
From Windows 98 on reading UDF is built in.

The Geek
5th December 2004, 18:01
And if not, install a free UDF reader and that's it.

Seriously, keithmac, it is not possible to copy protect a CD or DVD.

Just look around. . the commercial CDs and DVDs .. look what has been tried, and still there is no single disc that can't be copied.

So, forget it. Anything that can be read, can be copied. Period.

The Geek

ron spencer
7th December 2004, 18:07
what you can do though is to have your first play domain goto a password protection screen to enter the DVD. Enter the password and continute. You would have to have all P-UOPS on for it to work....would work for casual user only

Matthew
8th December 2004, 07:27
Originally posted by The Geek
Just look around. . the commercial CDs and DVDs .. look what has been tried, and still there is no single disc that can't be copied.

So, forget it. Anything that can be read, can be copied. Period.

That's great to hear, please explain how I can make a digital copy of protected DVD-Audio discs :P

The Geek
8th December 2004, 11:35
That's great to hear, please explain how I can make a digital copy of protected DVD-Audio discs

Since I know nothing about DVD-Audio I unfortunately can't tell you. But there is a way. After all, it can be read, can't it ?
Maybe if you google for it you'll find something, but I don't know.

The Geek

SomeJoe
8th December 2004, 18:19
Originally posted by Matthew
That's great to hear, please explain how I can make a digital copy of protected DVD-Audio discs :P

Very straightforward.

If you have a DVD-Audio player, it is a self-contained unit. Thus, everything you need to extract an unencrypted digital PCM stream is contained inside that player.

Begin by dumping the ROM of the unit, disassembling it, and analyzing the code. In there you will find the decryption algorithms and disc authentication processes. Reverse engineer the same algorithm on your PC to extract the unencrypted digital audio from the .AOB files. Take the unencrypted digital audio and use the DVD-Audio authoring program of your choice and make a new DVD-Audio disc that is unencrypted. You now have your valid backup copy.

Anyone with a proper educational background, the proper tools, sufficient time, and sufficient motivation will be able to succeed.

Disclaimers:
The preceeding theoretical suggestion, while technically valid, may or may not be legal in your country. In the United States, disassembling and reverse engineering encryption algorithms to violate a copyright is prohibited by the Digital Millenium Copyright Act (DMCA). It is debatable whether making a backup of digital content that you license is a copyright violation or not. US Copyright law states that it isn't, while other provisions in the DMCA make it less clear. In addition, the ROM of a DVD-Audio player may contain copyrighted code, whose use would be prohibited, and certain portions of that code itself may be encrypted or protected, thus any reverse engineering would also violate the DMCA. Use of the DVD-Audio decryption algorithm without a proper license is probably a copyright violation as well.

Matthew
8th December 2004, 23:41
Originally posted by The Geek
But there is a way. After all, it can be read, can't it ?

heh, there is no DVD Decrypter equivalent for DVD-Audio discs, that's the point I was making ;) It's a stock standard response to the "everything has been cracked" assertion.

SomeJoe, very straighford indeed ;)