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This topic comprises 2 pages: 1 2
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Author
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Topic: DVD Piracy
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Steven Pickles
Film Handler
Posts: 81
From: Gainesville, FL, USA
Registered: Mar 2001
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posted 03-14-2001 01:39 PM
John,This story only foreshadows what the future has in store for digital media--or any media for that matter. To the inventors it is not just about seven lines of computer code to defeat DVD encryption.. its about beating the system. Such a human mindset has been around for as long as societies have existed. Nothing is ever 100% safe and secure.. and often even the best attempts to do so fail. All this does is allow for more attempts to encrypt something that will inevitably be broken soon after its release. From software to movies, there will be people who feel the need to cheat others. On a another note, someone will always know how to decrypt data beacause a human has devise a system with which to encrypt the data. That system can only be based on human thought (more or less) so then it only takes a human to think of how to decipher the message.
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John Schulien
Expert Film Handler
Posts: 206
From: Chicago, IL, USA
Registered: Nov 1999
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posted 03-14-2001 04:38 PM
It's always been a dangerous world out there for each and every media. It's worth pointing out that the first digital format was the movable type press, and media producers have been fighting piracy -- both real and imagined -- ever since, in digital and analog form. CSS is a curious invention, and what it doesn't do turns out to be just as interesting as what it does do. CSS doesn't prevent commercial piracy. As the Chinese DVD bootleggers quickly learned, all you need to do to make bootleg copies of a DVD is to make a bit-for-bit copy of the encrypted data. Why would anyone making pirate copies bother to decode the data anyway, when all DVD players have that functionality built in? CSS doesn't prevent people from converting movies into internet-downloadable files either. It's been shown that this can be done by feeding the output of a DVD player into a computer-based video capture card. The quality is supposed to be slightly inferior to the native DVD, but that apparently doesn't matter, because the process of down-scaling the MPEG data stream into the chunky, artifact-filled video CD format causes so much video quality loss that regardless of what your video source was, DVD or VHS, the results are uniformly dismal. Ever seen a video CD? Yuck! Would YOU spend hours of modem time to download something that looks inferior to something you can rent for a dollar at the video store? What CSS DOES do is control access to the DVD player market. If you want to produce a DVD player (as opposed to a copier, which doesn't need to decrypt the data), you need to know the decryption algorithm -- that little seven line program. Until the CSS algorithm was reverse-engineered and disseminated, the only way to obtain that decryption algorithm was to sign a contract with the CSS controlling authority in which you would agree to implement region controls, and not to include a digital output on your DVD player. That's why none of them have one. A digital output on a DVD player would be extremely desirable, because it would allow one to connect it directly to a video projector or high-end television with a firewire input, bypassing the distortion caused by the digital-to-analog conversion, and the deliberate Macrovision distortion. Region-free players are highly desirable because they allow people in Europe to buy American DVDs, which are generally higher quality -- with more features -- and are priced lower then the local region DVD offerings. A Macrovision-free DVD player would be desirable because you could connect it to your television through the line-in on your VCR without the picture being distorted by the Macrovision detection circuit in the VCR, and some TVs are affected by Macrovision. The real question with DeCSS is whether it is constitutionally permissible, under U.S. copyright law, for the copyright holders of most motion pictures to join together in a "consortium", and dictate what equipment may be used to play DVDs that have been sold to the general public. The Supreme Court said, "No" in 1917 to a similar question, when it dissolved Edison's Motion Picture Patents Company, which controlled the motion picture industry the way that the DVD consortium controls the DVD industry. Among other things, the Edison Trust licensed projectors, and declared that it was illegal to display a motion picture produced by the trust (which was most of the industry players at the time) on a projector that was not licensed by the trust. The Supreme Court said no way, and dissolved the trust, breaking open the market for both motion pictures and motion picture equipment. The motion picture industry has done quite well for itself since 1917. Practically speaking, it's too late to stop the spread of the CSS algorithm. The horse is out of the barn, and it isn't going back in. The fact that the decryptor can be written in seven lines is interesting, but hardly important. Seven lines or 7000 lines, the important thing about the DeCSS program is that it breaks the DVD trust. The only logical reason I can see for the MPAA to continue to fight the CSS battle is to regain control over the DVD player market, and keep those region-free, Macrovision free DVD players with digital outputs -- a superior product -- off the shelves. It's an ugly industry fight, based on the question of whether the general public has the right, once they buy a DVD, to view their DVD on the equipment of their choice, or if they only have the right to view their DVDs on industry-approved and licensed players.
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Scott Norwood
Film God
Posts: 8146
From: Boston, MA. USA (1774.21 miles northeast of Dallas)
Registered: Jun 99
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posted 03-14-2001 07:55 PM
Paul -- I agree with you on this. The bigger problem, though, with CSS and the DMCA (an evil piece of legislation called the Digital Millenium Copyright Act) is that both of these infringe upon legitimate "fair use" rights of individuals, while not really doing much to prevent the real problems of piracy.
I'm totally in favor of increased enforcement of copyright laws, yet the idea of making it illegal to reverse-engineer a copy-protection scheme even when such reverse-engineering is necessary in order to make legal personal copies of the material (which is within the fair-use rights of the user, at least in the US) is clearly a misguided approach to the piracy problem.
(Sorry for the mini-rant. I'd just rather see better enforcement of existing laws against copyright infringement than these lame pseudo-copy-protection schemes and laws written by record- and film-industry lobbyists which essentially reduce "fair use" to a meaningless concept, making life very difficult for libraries, personal users, etc., while not doing anything to solve the real problem of piracy.)
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Jerry Chase
Phenomenal Film Handler
Posts: 1068
From: Margate, FL, USA
Registered: Nov 2000
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posted 03-14-2001 08:09 PM
John S., I love it when someone like you does a reality check.It is common knowledge that anyone can get the latest movies off the net if they are willing to suffer through abysmal quality and long download times. AFAIK, DVD isn't the future issue as much as MPG4 and the non-Comp-usa DivX. We need to ask- Why is piracy such a big issue that it could put most theatres out of business? Film has historically depended on three factors to justify the high prices charged moviegoers for an ephemeral product. 1. Timeliness. Being the first to see a film has always been an audience draw. Film, as a product, has a definite short shelf life for most people. 2. Quality. In addition to quality of plot and performances, this includes presentation quality, which is what this group largely discusses. 'nuff said. 3. Ambiance. No screaming kids, no phone calls, no interruptions, beautiful comfortable surroundings. Other lesser factors, like convenience and product awareness, also play their part. It is no wonder that the problem of piracy is such a big issue. When timeliness has been compromised by pirate copies becoming available day-and-date with the major release dates, (Str-r-r-r-IKE one!) what is left? Quality. Much as I hate to say it, a large portion of the exhibition end of the industry does a lousy job. Scratched, out of focus prints, lack of proper masking and curtains, cheap slide shows on the magic screen, all these add up to a perception of poor presentation. Home presentation systems keep getting better. Str-r-r-r-ike two. Ambiance. Screaming kids, cell phones, interruptions, auditoriums controlled by a computer to be uniformly too hot or too cold, in order to save pennies on energy cost. Strike three. Yer out!!! Piracy could end up being the final blow. Indian language films suffer from this problem, and the market for Hindi films has shortened to a single week in some markets. After that, the pirate copies saturate the market. It goes against the grain for me to say it, but in larger markets we would probably better serve the public if the industry went back to vertical integration, where Fox features ran in Fox theatres, etc.. The incentives for excellence are reduced when the industry is split into warring money-grubbing factions the way it is. By giving a company control from inception to finish, and forcing competition based on quality of the complete process, it would be VITAL for a company to insure quality product and presentation.
The copyright issues would be immediately solved by such a move. Fox would have their own proprietary encryption codes, and other companies would have other unique codes. Any hack could be dealt with internally, and new codes implimented with minimal hassle. By not splitting the profit pie into so many pieces, profit margins would be increased. Comments?
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John Schulien
Expert Film Handler
Posts: 206
From: Chicago, IL, USA
Registered: Nov 1999
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posted 03-16-2001 04:47 PM
Consumer recordable DVDs *are* slightly crippled, but in a fairly unobtrusive way. All DVDs include a special fixed "key" area. On any DVD encrypted with the CSS algorithm (in other words, most but not all commercial DVDs), this area holds part of the CSS decryption keys for the disk. When combined with the keys built into the player, this gives the player enough information to decypher the DVD data and display the movie.On consumer media, this area is permanently zeroed out. This prevents you from copying a CSS-protected DVD bit-for-bit onto a blank and having it work. You can't fill in that one critical area, so your DVD player can't decypher the data blocks. However, if you're creating your own content, there's no problem. Your DVD is mastered in unencrypted mode, and this is fine, because all DVD players are perfectly capable of playing back unencrypted DVDs. It's part of the spec. BTW, with regards to audio CDRs, there are two differences between audio CDRs and data CDRs. The first is that audio CDRs have a special identification mark built into them that allows them to be used on standalone CDR burners. This doesn't prevent their use as a data CD, it just enables their use on standalone equipment. The second is that 3% of the import or wholesale price of any digital media branded for audio use is paid to the RIAA as a "royalty", in case you happen to fill the disc with copyrighted material. All of this was introduced by the Audio Home Recording Act in 1992. It currently exists as Title 17 Chapter 10 of the U.S. Code. http://www4.law.cornell.edu/uscode/17/ch10.html
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