Audio
Continuing the discourse on DRM systems would make now some considerations about the file formats and what can be "actually purchased" and as via the Internet and a PC.
First you need to keep in mind that not everything can be "really" bought with the Internet, at least not with the fast and efficient formula of the download. When the MP3 began to become popular, it is passed from 20Mbyte of a song, excerpt from an audio CD, compressed file to 2M; savings in terms of time-download 10 times lower (with variations depending on the length of the song original and the type of compression used MP3). At the time, then, was the standard dial-up, or 56K modem, then the MP3 format has been a real revolution that has produced all that we see today in the field of music on the Internet: radio streaming, iTunes , P2P Applications, ability to listen to hundreds of songs in our car and on the phone, etc ...
Download the MP3 on a PC, they can again be converted into audio CDs and burned, so as to be played just like an original audio CD and without the obligation of devices that can read the particular format MP3 compressed (although today all latest generation devices recognize the MP3 and not only, as DivX, AVI, JPG, etc ...). Simultaneously in the network it could even find all the equipment to reproduce the coopertine of an original disk so, who had time and capacity, could "rebuild" home a remarkable facsimile of an audio CD, similar to that present in any shop. The evolution and the low cost of the inkjet ink (as is happening with photography-digital) of blank CDs and cases, produced an increase of Piracy Audio esponensiale is that of the "DIY production" of CD! You can even recreate the printing on the CD superfiecie virgin, making the final product substantially in order identical to that store-bought (or bought by ordinary mail)!
In practice, in short, with minimal expense, you can recreate the complete package of an audio CD at home, without discotarsi too original. We understand how all this has had, and still has a considerable impact on the entire recording industry worldwide. Here, therefore, that protection systems become a central, probably lagging the phenomenon itself.
Application Software
The procedure I purchase and download has its maximum expression with the software applications. When you buy software, of course, what matters most is just the "file" box and kit, in this case, are irrelevant. Over the DRM software applications are an environment favorable as the only device that can operate is the Personal Computer. At the time of purchase, in addition, the end user indicates the type of personal computer and the operating system you have, so as to "vertical system" all security procedures: as the activation keys, often working only for that particular "edition "application.
In the near future, however, the inclusion of operating systems on mobile devices (see Apple iPhone) could have on the procedures for software protection. It is clear that, in short, it will be possible to use, for example, Adobe Photoshop on our phone (or something like that, given the evolution of generation mobile phone)! In this thing we will have to purchase separate licenses for use on personal computers and on various mobile devices (and not) in our possession?
The breath of fresh air brought by the Web2.0 has launched a series of initiatives "beta" designed to "move" the software, as we know, directly on the network. Adobe, for example, has announced a version of Photoshop can be accessed via your Internet browser. Different devices accessing the network will then be able to use the same software. And the licenses? How all this will be handled?
Film video
For video, or a movie in praticolare, the speech is very different! First of all you are not getting a compression format that it can be really compared to MP3. Despite considerable progress has been made, the video, at least to a certain quality (comparable to known VHS format), remains "heavy" and difficult to treat, both in terms of memory occupation both in terms of computing time. A piece of music takes on average a couple of minutes, the second most second or less, a film, on the contrary, reaches on average 90 minutes! In the end it was the reason for the development and dissemination of the elder brother of the CD: the DVD. The CD was intended for the music, so 700Mb were basically adequate, but with video we wanted something bigger, the DVD was the answer!
When we deal with the video the only task of scanning (conversion from raw format to a compressed video format, such as AVI or MP4) requires machines and computation time beyond the reach of most people. Download a movie from the Internet to be able to burn still requires discrete time, which often discourage most from even trying.
In the movies in DVD format, then, the digital age has opened up new forms of presentation and content. In a DVD, in fact, is not normally present only the movie, but are included in the kit subtitles in various languages (which occupy space), audio tracks in different languages (that take up space ..), special inserts, additional content, final altertnativi , shots customizable tabs of the protagonists, the sections can be used on a standard PC! In short, a nice amount of data that, if they were to be downloaded from the Internet in a short time, would require a band "dream"! However with time, when connection speeds increase and the computer will always be faster, even these obstacles will be overcome and the ability to "buy" a movie from the network may become feasible. Do not forget, though, that the high-definition era is practically begun. A film in high definition obviously contains much more information than those available today. We are witnessing, therefore, to a race between the increase in the size of the video and the Internet bandwidth available.
The metamorphosis of the CD in the DVD, which has initiated the era of digital video, it is found today in the transition from DVD to Blu-Ray (Sony) or HD-DVD (Toshiba), technological advancement required by the amount of data that high definition brings with it!
Most likely, therefore, in the short term, the convergence of Internet / DVD will be difficult, at best restricted to some privileged users, as already happens with SKY (which offers its high definition) against DTT, without the traditional resolutions.
The first steps, then, moved by the latest consoles Microsoft Xbox 360 and Sony Playstation 3, indicate that high definition is ready to spread like wildfire, aided by information that already littered PC monitors 19-inch 1280 × 1024 resolution a bit 'everywhere!
Publishing
The publishing industry, on the other hand, has certainly suffered less damage than everyone. Replicate a book, in fact, is not convenient. A book lives because of its shape, for the quality of its paper to the size of the page layout, for the peculiarity of the press, all characteristics difficult to replicate in today's home environment. Recreating a book, after downloading it from the Internet, is anything but simple. In addition, "digitize" a book is not so easy, unless someone invents an "3D scanner" can "photocopy" a text without opening it! Despite these peculiar characteristics happen to find some "piece" of text on the net! But the damage is minimal, partly because read on the Internet is still very uncomfortable, at least for certain content: essays, novels, comics and more.
From the experience of publishing, in the end, we could see some indication of the possible solution to the problem of DRM in audio, video and software in general. Protecting a file has long compartment result. There is always someone ready to undermine the sophisticated protections used. It is obvious that if you can not protect a file from the copy, otherwise prevent the use then, forget it and focus instead on the "why" you are buying an original product. Entice the end user to purchase a legal copy of a CD, a DVD, or software, can be done by offering those features that can not be replicated by a "pirated copy"!
For software, for example, assistance, access to restricted areas in the network, gadgets, special promotions on other products, free invitations to events and presentations, are some of the "technical" or activities that may lead to ' buying an "original" an end-user.
I think, therefore, that the solution of the problem may reside in the same end user. This must be willing to purchase a product, make sure you get the "service" that, in the end, could not possibly get as not "replicable".
Continued ...
Introduction
Being the subject long enough, I decided to divide it into several posts that I will publish as.
Introduction
From the software point of view, and in relation to new technologies, advertising and DRM (Digital Right Management) have much in common, especially today where they both play a key role in the construction of the platform Net TV. In particular, they have the need to exist, to play an active role, but at the same time non-invasive.
Both try not to be "bypassed"!
Both protect investment!
These problems, in the end, there have always been, but what has changed today?
Why is it so complicated to protect a resource or place an adv of a brand?
The main feature of Net TV is that it is a technology based on the Internet, is extremely accessible for those who make it, and for those who benefit. The absence, therefore, of particular devices for its existence make it a very open system, subject to the known rules of the Network.
The tools to deliver Net TV are all available directly on the Internet: Video Player, streaming systems, conference director, etc ... Acquire a video, then with a webcam or a mobile phone, is an activity now within the reach of all. In this beta, so everyone can contribute to the evolution of Net TV, developing components or simply giving their views on whether or not a particular system.
DRM
Protect digital content from copies indiscrimanate is an ancient problem, which dates back to the early days of computing. If at the beginning the issue was essentially the so-called applications, computer programs to be clear, today - in an era of mass digitization - where everything is precisely Digitized (photos, movies, music, books, ...), the problem is taking on the appearance of a real nightmare, both for the authors of the Work for end users!
Although it is possible to protect digital content, new forms of use of these contents have completely disjointed system that, despite some of its limitations, has allowed so far to limit illegal copies of DVD movies or Playstation games, and ensured economic transitions on the Internet or ATM citizens. The question, therefore, is not so much in the protection system, understood as the encryption algorithm, but in its location.
The software (defined as the application), in an environment like the Internet, has upset the system of standards adopted to date. The standards, in fact, have ensured a real chance to trade for a product while helping protection systems.
When the Philips invented the Compact Disk (CD), so to speak, it was adopted as the new standard for support - and listening - music. Any electronic company could create their own CD players (paying the patent at Philips), but you had to respect certain formats: standard indeed! If electronic companies to adopt each of our standards, that is, of its unique features and techniques in the production of a CD - and therefore also for the discs themselves - no one would listen to more music! Depending on the type of CD you purchased, you should find the corresponding record ... hell and the end!
The standards, therefore, are indispensable for the market and the spread of a product, as they ensure the end user. Any CD player will be able to read our favorite record without forcing us to change the whole - or almost - stereo!
Recently, for example, the controversy Blu-Ray (Sony) and HD-DVD (Toshiba), related precisely in the direction of build systems that, although different, would allow not to require such a drastic choice end users. In addition, not always the best technology is the one that will prevail in the market. Are so many, in fact, the variables that come into play in the assertion of a standard with respect to another; as happened, for example, with the VHS system in VCRs!
To date, however, despite the electronics companies are certainly not few, proposals for new technologies and standards are maintained fairly under control. Not all companies, in fact, investing in "prospecting" and "pure research." So in the end, they are a bit 'always the same companies to innovate, in a swing that gives you time to market to consume the old technologies and open doors to new ones.
By doing so, you have an important opportunity to agree on where to place protection systems and choose what kind of protection taken. All CD disks, for example, are equal, as are in fact the readers. It becomes, therefore, quite natural to find an agreement to enter a code and controls in these devices.
What would happen if each of us could achieve a new standard?
In fact it is precisely what is happening today in the Internet. The technology is simplified, both from the point of view and from the point of view Hardware Software. The audio formats available today (such as video) are numerous, despite - then - only some can really be called standard.
If we add to this that, from the "real world" we have gone to the "virtual" - or digital - the Internet, we understand how easy it is for anyone to access, quickly and globally, to technologies previously unthinkable. Today, anyone with a little effort, they can realize their Player Video on the Internet. At one time, on the contrary, create your own player laser in the garage was an investment to say the least risky, both in terms of cost and time!
Last but not least, then, all this is added the problem of cross-media, or the possibility of using the same digital content across multiple and different physical devices, also at the same time! The explosion of this exceptional ability has occurred with the spread of MP3 music format (and derivatives), and the simultaneous increase of the devices able to read it. An MP3 file, in fact, can be heard on a personal computer, a video game console, a DVD-Video player, a stereo with CD player, a portable CD player, an Apple iPod, a cell phone and all other devices - mobile - in continuous production (pennine USB headset with built-in, like iPod, ...). In short, a real boon for the end user, a nightmare for Authors!
Attempts to enter the DRM in the neo-musical universe gave somewhat disastrous results. The use of protective systems, such as the one proposed by Apple's iTunes, restrict the freedom of the end user to be able to use the "product purchased" as it sees fit: if you buy a song on a particular store, I can not be forced to listen only with special tools (hardware or software), the only ones to determine its authenticity. In this way, you lose the concept of "acquisition of rights of use" of the song, in this case, in fact, it would be more correct to say that you buy a service (limited) listening to a piece of music with special hardware devices and software . All this brings with it the further problem: the guarantee - minimum - the temporal continuity of what you bought! There are those who, for example, is still able to hear the "old vinyl" 33 rpm which, paradoxically, are proving to be more long-lived than you might think. If the store I must provide the player (that binds me to certain listening mode to validate the DRM), when the player is no longer available what will happen to the song that I purchased? If I find myself in circumstances, such as not to comply with the listening modes imposed, how can I listen to my song? In this context it would be more correct to speak of "songs disposable", with a maximum cost of 5 cents and not the euro - and more - today!
This scenario is devastating in a perspective cross-media: if you buy a piece of music I want and pretend to listen to him on the phone instead of on your home stereo, or any other device available. Otherwise, "kill" this fantastic opportunity daughter of the era of Mobile! Mobile, then, does not mean "cellular" or "mobile". More and more devices "furniture": laptops, iPods, laptops, Pen-Drive, etc ... It is therefore not possible, in this scenario, buying the same piece of music for different devices, just to give "credit" to DRM . No one would do it and no-one will do it.
Today it is not possible to know with certainty where and with what content will be enjoyed! (Matter of utmost importance that invests, as we shall see later, is the type of content that the advertising)
Moreover, all these mobile devices, along with the fixed ones (such as personal computers, TVs next-generation DVD / CD / DivX / xxx-Player), are interconnected in many ways: through the Internet, Wi-Fi, Bluetooth, P2P , with a lead in peer-to-peer!
Mobility becomes even cooperation between devices or aggregation of different devices, so you can use your iPod as a player and send the sound of the music to a stereo NoteBook or to a facility!
It is therefore unlikely to find the uniqueness of the device in this era!
That alone would be enough to demolish the DRM forever, as the rights to operate the system must be present on both the device and the digital content. On this last item, then the question becomes even more complex. First of all, let's talk substantially files, whether they audio, video, applications, PDF documents or whatever. Second, by definition, a file is extremely easy to copy and carry anywhere, as we have already mentioned. Third, the attack of a hacker, then the alteration of the file itself, is more than ever for everyone!
At the end of the scenario that you paint the eyes of the authors is as follows:
- No action on your device, as this is too varied and changeable lock would be the prelude to the end of the portability understood as mobility
- No action on the file, this being too accessible and manipulable
In short, being a human being, in the end, the one who buys (or is the person, the end user who purchases the rights to use), fineremo for having to engage under the skin (or take with us) to validate an RFID our digital content! In this way, only those who have this "Digital signature", you'll enjoy that content on any device. However, even this solution, which apparently simplifies the issues related to the device and file-contents, may have important drawbacks, such as to prevent the use of the content in our absence - that is assensa the right and then the DRM. Basically, if someone wants to use the content purchased from us, we are forced to lend our RFID-DRM, colleague, friend or relative who is! Privandocene but ourselves!
All devices should, therefore, support RFID, performing a cross-check between digital content and information contained in RFID itself. A third wheel, however, that does not solve the problem! It would not take much to hack the system, either on the file-content or RFID.
Moreover, in case of software devices, such as Internet browser on Player for example, l 'hacking would be immediate!
The experience gained from years of Software Piracy (or of piracy in general, that on DVD and other formats) now makes it possible to know, at least in advance, what will be bypassed or not. Excluded, therefore, proprietary systems or with limited circulation (such as Freeview or Sky with prepaid card), which are now a world apart, protect digital content from the network, whether they audio or video, you which seem difficult, if not impossible.
Continued ...
Who has had the ability and patience to see the last of Steve Jobs Keynote, where it is presented the new Apple iPhone, will certainly have found fascinating the latest wonder multi-touch technology in Cupertino.
Reveries to the "Minority Report" apart (the reality often exceeds the really fancy), what struck me most, though already present in many smart-phone on the market for some time, is the ability to surf the Internet like a home PC. The iPhone comes into direct competition with traditional phones and not with the smart-phones currently on the market. Apple has presented its solution for mobile, according to its classic line guide: simplicity - so - mass distribution, as happened with the iPod.
If smart-phones currently on the market, those with Windows Mobile on board for example, allow you to surf on the Internet, however, are perceived by the "mass-market" as a hybrid between a phone and a notebook. I mean something different from the "cell" of all days. To date, a phone is a "cell" in the sense that surfing the web is relegated to a few - some do not even know that you can do it - (also seen costs) with solutions that are distant from the home of a PC, for the size of the display, for the speed of the band, for the difficulty of interaction with the simulated keyboard or mouse, etc. ...
However, almost unnoticed, it seems to me that there is a small revolution in the act of considerable interest, at least for Web Developers
Being able to navigate a site from the "street", without changing the technology used is a huge step forward. To date some reality on the Web are double - if not triple: WAP, Flash Lite (version for Windows Mobile or Symbian) and Internet standards. To converge and unify browsing technologies is an important achievement, the antechamber to the true spread of navigaione via mobile phones.
The WAP, for example, as it is endeavored to emulate the real Web has failed miserably. This reminds me of the digital terrestrial!
The Net TV, for example, in this new situation might find fertile ground to take root even more than a few years ago. Then there is every reason to give further impetus to the second youth of the Internet. On the one hand the new forms of aggregation of the community and on the other the opportunity to take advantage of these "experiences" as well as from home even in the "mobility" over the total.
Continued ...
We finally! The Web, via the well-known brand Google, officially arrives on mobile phones. The fact that it has launched an advertising campaign (TIM), which shows the use of the Google search engine on mobile phones, enlighten those who still do not sapevavo the Internet - after all - it was also accessible from your mobile phone.
In reality there is a real technological breakthrough in the strict sense of the term. WAP and derivatives (Flash Lite, for example) are available and used for some time, however what makes it interesting is the official sponsorship by the use of Google Mobile.
You can now open a new market for the fact that IT should plan in their schedule of offerings, the ability to provide a version of the Web for the mobile navigation.
But how widespread is the use of the mobile phone as a web browser?
TIM has sent, recently, an SMS (advertising) where informed that the rates of Web browsing (or WAP) via mobile phones were changed! In this case, you only pay the connection fee (we hope that it will be eliminated in soon too) after which you navigate to what you want for free. This is a step that confirms the fate that - sooner or later - awaits us.
It is therefore clear a movement, a ferment in this field, tested - for example - an agreement on a set of guidelines for the development of sites WebMobile between Nokia, Vodafone and Google. The W3C, for its part, offers its guidelines .
According to research conducted by M: Metrics, 19% of U.S. mobile phone users regularly consult the Web through their mobile phones! Imagine the Japanese!
Daniel Applequist, an executive of Vodafone, said that "we now know that the equipment available to the users have the ability to surf the Internet, but they are not used as much as they could be." This is true, and depend almost exclusively, the cost of connecting, still substantially different than connections housewives and not well advertised to the mass. In addition to this we must also consider that - at least in Italy - is relatively recently that have become popular phones in color! Quesione to be reckoned with!
In addition, Applequist, argues that "the majority of available websites do not work well on mobile phones", and hindsight, we add, do not work well even with the normal browser on your PC!
The question is - unfortunately - still the same! The standard - in this context - seems to suffer from huge and insurmountable difficulties. The developers already fear, in fact, that the recurrence of the same scenery ruinous present on the desktop, where even browser such as Firefox still suffer from different operations depending on the operating systems on which it is installed. It 'hard to think of a standard robust and secure to the cabinet when - even now - Microsoft IE renders a page in one way and another in Opera!
Surely some of the blame has to be attributed to Web developers who often use proprietary functions specific to a particular browser, thus making navigation - if not the reading - not possible with other systems. However, for those working in the Web, the prospect of having a new device is certainly fascinating to explore, a few clouds on the horizon could discourage more, but we are confident, a new market opens, and maybe it could be an opportunity to fix - once and for all - the biggest nightmare that haunts the majority of web developers
W3C proposes its guidelines, it's up to us - but - try to follow them and, not least, to manufacturers of mobile phones could soon become Apple or Microsoft ... or if Adobe ever, since one is buying it all! 
Continued ...
Latest Comments
Giovambattista Fazioli : @ ale: As shown @ Kevin see on GitHub repo: https://github.com/gfazioli/Ch roma-Key
Giovambattista Fazioli : @ Kevin: See https://github.com/gfazioli/Ch roma-Key
Kevin : Very nice example - would like to see the. fla too!
Ludovica : Hello! I'll explain my doubt. When I write a post not add pictures in the article (if so ...
Marco : hello @ Giovan Battista Fazioli, thanks for all the explanations of this excellent guide. I have a question to ...