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Watching DVDs in Linux HOWTO
IceFox writes "Last week CSS Disk encryption was cracked. Soon after the data encryption was cracked. With some hagling I got everything working and was able to watch DVDs in Linux. Sound, Video, the works. I wrote up a how to for anyone else that cares to do it." Its not quite ready for prime time. No sound and vid at the same time. Update by roblimo: Jens Axboe sent a link to his page, which contains additional Linux/DVD info.
I haven't read the whole thread yet, but I think everyone here is missing what DVD encrytion is all about. IIRC the movie studio's don't give a damn whether you copy thier product or not. The idea behind encrypting the data is so that you can't make an exact duplicate of the movie. You can copy the thing as much as you want. The movie producers problem is that with the ability to digitally copy almost anything there is no degradation, a 20th generation copy is just as good as the 1st generation copy. With DVD we now have the ability to have almost the same experience at home as we do in the theater. This is not a copy protection issue, but rather a picture quality issue. If anyone has read the copyright notice at the start of the movie,instead of fast forwarding through it, you'll note that you can copy the movie for your own usage as much as you want, as long as it is not for financial gain.
So just to state the obvious, copy to your hearts content, just don't expect the same quality as the origional
The Matrix DVD isn't buggy, rather the players themselves arn't up to spec (ie: the manufacturers cut features to make a shipdate, because "who will ever use that overlay feature?").
:).
If the disc were buggy all of the players would exibit the same problems. Seeing how one thing is broken on one player, while another is broken on another indicates (to me) the player is broken in these instances.
For what it's worth the Panasonic A-110 is one of the few players I've seen that play it properly.
I'm still impressed that they used every last byte that the disc could hold... all 4.3gigs
Componentisation with ActiveX and COM? So they are the end-all, be-all of component technology, using something else is not an option?
We have lots of complete IDEs. RAD tools aren't that common, but IMHO they suck anyway. Xemacs is a great IDE. Then there are KDevelop, Code Crusader, CodeWarrior, GNUpro, xwpe, RHIDE, and probably a lot of other things that I don't recall at the moment. Exactly what is it that Visual Studio has that these are missing, beyond GUI builders?
As for configuration, why do we need a registry? A registry is in no way necessary for GUI config tools, so that's not an argument.
A more stable XFree86 would be nice, but given that it has crashed 4 times in 5 years for me, it's not that huge an issue. And with a bit of luck, XFree86 4 might be more stable.
A decent web browser we definitely need. And I think Mozilla will provide us with one, though it's a while till that's finished.
From what I've heard, the decoder doesn't support the YUV conversion stuff in many modern graphics cards yet. So the code is pretty fast, for not-really-optimized C. So when the Xfree86 people come up with an extension to support hardware-based YUV conversion, things are going to get lots better with any format that requires a YUV conversion pass to play.
And by the way, you can pretty much forget about $free{"beer"} decoder card software; from what I've heard, the DVD license comes on a per-developer fee and a hefty NDA. Which means that even if Creative wanted, they couldn't release any critical parts of the DVD "standard", even if the cat is already out of the basket.
1) 2^^16 attack on the CSS cipher itself Requiring 6 known plaintext bytes
2) A 2^^17 attack on the key generation, that will yield a deluge of player keys in a matter of minutes ( such as the randum nubers ). read here
3) Finaly A third crack that will decrypt a DVD without even knowing a single player key. This attack is more complex (2^^24)but will give a valid key in less than 20 seconds on a decent machine.
In short the CSS system was poorly designed, and has now been thuroughly been demolished.
I'm very glad that you can't simply copy the movies and post them, yes it is akin to mp3's but let's get the legal issues settled about the mp3's first so that there is some legal basis for the movies. Besides it doesn't make sense to take on hollywood as well as the record companies at the same time.
use video and sound simultaneously. It just requires a higher end machine or dual processor config...
This is just because the code at this point is not optimized. It will be soon, since a large chunk of the interested geek communities (sound & video geeks + computer nerds) overlap...
Check my Go-related blog for beginners: DGD
I seem to recall that a QT/AVI player on the Amiga had a radius cinepak decoder and a CYUV decoder, in source. Although the formats that people would most desire are still the intel indeos... Yes, there are the xanim linkable files, but reverse engineering ain't fun.
I'd hack the SDLmpeg code myself to do this, if I knew something about the VCD format :-) After all, it's all in the headers, right? MpegTV (an evil capitalist piece of proprietary chicken poo) does this just by parsing the headers and separating the audio/video stream, IIRC.
Uhh... Realaudio sucks, compared to an equal bitrate (equal hz, too) LAME-encoded mp3 stream. IMO of course.
Good luck. Sonic Foundry are in bed with Microsoft in a big way (they did much of the work behind the Windows Media format, for example). As such, their software is written around Microsoft's proprietary APIs and they don't even have Macintosh ports. (A sore point with me, as I have a Mac I run Cubase on, and would like to try ACiD on it.)
Not sure whether MS owns a large chunk of Sonic Foundry, though I'd say it's not unlikely. This does look rather like an offensive to make Windows systems required equipment for music, much in the same way that Avid's dumping of QuickTime (under coercion by Microsoft) was designed to capture the video editing market.
quite right that current dvd doesn't support hdtv resolutions. But it's just a scaling problem. DVD's are usually encoded at 480p (480x640 frames @ 30 fps). Highest HDTV is 1080x1920 progressive or about 19.3 Mbps or 2.4 MBps (Most broadcasts will be in 720p which is only 8.8 Mbps) By comparison, my 10x DVD-ROM does 13MBps.
tcboo
Now, I've finally found a working url to q3test 1.08. I've used "copy link location" in Netscape's rmb menu to get the url into the clipboard and I'm going to paste it into a wget command line. Now, I'm going to be doing some X development and I'm afraid I'm going to crash X so I'll need to run wget under nohup in an xterm or in the console. I want to watch the download progress so I'll do it in the console. CTRL-ALT-F3, type "wget ", middle click. What happens? Some shit I selected in the console earlier and contains a load of newlines is pasted, causing wget to try download some garbage and the string "rm -rf /" (that happened to be leftmost on the screen in the garbage I had pasted earlier (presumably a copy of some haX0r digest)) to be executed as a command.
Fortunately I'm not one of those lesser beings that do everything as root.
Incidentally, the reason I'd selected that block of text is that I wanted to paste it into jed, running in another console. Guess what. That didn't work either!
BTW, what are the universal cut, copy, and paste keypresses that work in almost all programs, X or console? What is the ubiquitous method of selecting text with the keyboard?
"Cut and paste works great here w/ all apps... select w/ left mouse button and paste w/ the middle one" is an example of what we pride ourselves of not doing: sweeping problems under the rug instead of fixing them.
--
Fuck the system? Nah, you might catch something.
Unless DVD decoders get very cheap ($5-10) it's better to use the CPU to do it. For several reasons:
1- Take that $50 you'll spend on a decoder and put it towards a faster CPU. It'll not only let you do DVD with less of a strain on the system, it'll speed up everything else.
2- Software decoders can be free.
3- Software decoders can be upgraded.
4- Software decoders can be portable across platforms.
5- Hardware takes up space, even a single chip is precious in the land of tiny laptops.
The only reason hardware decoders exist now is because CPU's weren't *quite* able to keep up. Now they are.
Some things need to have special-purpose hardware, like 3D video cards. DVDs do not. The frame rate won't ever need to increase. The resolution will stay the same.
I just read how DTCP works... Potentially hazardous, except one thing. If the CA private key is compromised to a small group of people before a new CA key can be distributed, the the entire system would be lost to that group of people if they found means to transmit a new CA public key to the rest of the boxen. At that point every box would be at the hands of people of unknown intent, who might redesign the system or (worse) destroy the entire sysem by contaminating it with massive "Certificate Revocations". Immediately at that point, millions of lawsuits would force the manufacturers to repair the damage, would force the DTLA out of business, and inevitably destroy any future chance for "Content Protection" systems to be developed and implemented due to the incredible consumer outrage and economic disaster for the technology companies employing it. This will forever be a danger of a CA system, which is only secure for the limited time it takes to break the CA key. When the CA key size is takes small enough time to break before a new CA key is issued.. Trouble.
It is wrong that the movie industry was preventing me from playing my copy of a movie how/where I wanted to.
I wish the record/movie industry would learn.
COPY PROTECTION IS ONLY ANNOYING.
Dual cassette recorders didn't kill music.
Two VCR's didn't kill movies.
MP3's won't kill CD's(yet).
Though all these probably do serve to keep the industry more honest in pricing.
And BTW, I do have unencrypted DVD's. I'm not copying those or posting them on the web either.
There's more issuses that prevent this:
Download/upload time, HD space
Honesty
> The Matrix DVD isn't buggy, rather the players > themselves arn't up to spec
This is untrue. It is a plain and simple fact that the Matrix is incorrectly authored - it does not comply to the DVD-Video specification.
The reason different players work differently (or not at all) is simply because they are different! Depending on the memory representations of the DVD's data structures that a player uses, the amount it verifies that the data on the DVD conforms to spec and the amount of work done by the player to work around broken discs such as the Matrix are what make the players behave differently.
After all - just look at HTML. One single broken HTML page will display differently in different browsers - this isn't because the browsers are broken, but just because they react differently to the broken HTML. (The fact that they also react differently to non-broken HTML is beside the point here:-) This principle is exactly the same with broken DVDs such as The Matrix.
P.S. I work for a DVD player company. Our players didn't always play The Matrix quite right, so we had to put hacks into our code to work around the DVD authoring bugs.
A colleague of mine once attended a DVD show where the CEO/similar of the authoring house in question was saying how amazing they were and how they tested with every player known to man. It's pretty obvious he's full of sh*t - just look at all the problems The Matrix has! He didn't get quite such a good reception at a recent conference he talked at after this fiasco!
You are leaving out several important things. By far the most important is this: ultra-high quality SVideo out! Yeah, yeah, your TNT2 Ultra can do that, right? NO! Not the resolution and quality of a hardware decoder card, which is just a consumer DVD player-on-a-card. Another thing: AC-3 out, so I can use my $500 receiver for that instead of an unshielded sound card (eg, SBLive!). Another thing: software decoding would kill my distributed.net keyrate! Or kill the compile I might be wanting to do at the same time I watch a movie. The reason I bought a DVD drive was because at the time, a drive+decoder was $100s cheaper than a commercial player, I didn't buy it to watch movies on my computer!
The filmmaker need not entertain me to get my money. He just needs to make the movie appear entertaining enough in a 30 second TV spot to get me to pay for the ticket. Before I see ANY movie anymore, I watch the first 5-10 minutes from an .ASF off IRC. Some movies have been good enough that I paid the money to see them in the theatre (Thomas Crowne, Mystery Men). The rest is, frankly, crap.
"Reactionaries must be deprived of the right to voice their opinions; only the people have that right." - Mao
The pioneer 114 and 104S 10x are currently region locked players. Unless a firmware patch of hidden jumper is discovered, the recommendation is to stick with the older 6x model. See http://www.dvdutils.com/
-- Thorin sits down and starts singing about gold.
Uhm, usually the patents only apply to encryption, not decryption. In the case of MP3 (which is relevent here because MP3 is part of the mpeg 2 standard, which DVDs use), despite some initial threats from Fraunhoffer and Thompson, there wasn't anything they could do to people writing the decoding software, since their patents had to do with the psycho accoustic models used for compression, and de-compression didn't need to know anything about those models. To my understanding, decode/decryption/decompresion only is interfered with by patents when there is only one algorithm to decode something, and that algorithm is covered by the patent. However, in many (if not most) cases, there are multiple ways to decode things.
-- Superlame http://catpro.dragonfire.net/joshua/
When will people realize that JUST because its always been done that way in the past means it CANNOT BE DONE DIFFERENTLY IN THE FUTURE.
The telephone obsoleted the telegraph. Many people lost their jobs, many telegraph companies lost their only source of money. Do we still lament their passing?
JUST BECAUSE the current distribution methods of media won't give the CURRENT POWERS their money in the future. doesn't mean that there won't be alternatives in the future.
So what if the era 100-million-dollar movie ends? So what if the era of MGM or Paramount or Disney as film companies ends? So what if the era of the railroads ended? So what if the era of the Telegraph ended? As long as there is demand, there will be a replacement. Its safe to say that there will always be a demand for entertainment.
``I propose that to save the critically important telegraph industry we must make it illegal to transmit voice electronically over any wire.''
Or how about:
``I propose that to save the critically important post office, we must make it illegal to transmit any message electronically over a wire domestically.''
``I propose that we immediately discount that new foolish idea that some legistlators are proposing, called 'copyright', as it will let tyrannical authors prevent bookmakers from making books.''
Or, what was that one about british candlemakers protesting about how the Sun was screwing up their business?
The future is different from the past, just because its the past doesn't make it better, doesn't make it the only way that works.
In a few years, aren't DVDs & players going to be replaced by HDTV versions of the same thing?
If so, what's keeping the them from working out a scheme that's exponentially more difficult to break?
If I'm missing something, let me know...
I would put forth that any psychologist worth their weight would disagree with you.
Food, shelter, and clothing are physical necessities, though depending on the climate and such clothing may not rank as highly. However, you have emotional needs which go above and beyond that. Everybody, for example, needs to feel loved. Do you die if you don't feel loved? Of course not. But you don't develop healthily (or, if you prefer, normally) if that's the case. The same with entertainment. I'm sure you've heard the phrase "All work and no play makes Jack a dull boy." You're right, you *don't* need Q3Arena. You can just as easily get by with a deck of cards, or socializing with friends. But if you never take some time to yourself, to do things that you enjoy doing... then, well, something's wrong.
--
"I personal[ly] think Unix is "superior" because on LSD it tastes like Blue." -- jbarnett
The original DVD patch was done by Andrew T. Veliath and this is the patch linked on the HOWTO page. While it only worked on ATAPI drives, his interface and structure was good and I decided to integrate this in the standard Linux kernel but in a bus independent way. Current 2.3 kernels contain this code and it works equally well on ATAPI as well as SCSI drives (which is an important point, IMO).
In summary, if you are running a recent 2.3 kernel you are all set and there is no need to patch your kernel. If you are on a 2.2 kernel, get the patch from my page to get support for both ATAPI and SCSI drives.
http://www.kernel.dk
yup that's it, lets just leave the dvd/vcd/games to windows, so that way we never have to add any functionality to linux. What kind of mentality is that?
Linux is striving to be a better OS. We have code freezes to get bugs worked out, but after that, more functionality enters. That is the beauty of this system. It is nowhere near reaching its limits and I don't think just buying another machine to run windows is a way to solve this problem.
You mention that you have a linux router/dialup box. Hmm last I checked they have that for windows too, so why do you use linux for it? Stability perhaps?
This is why I love linux, sure you might have to wait for some functionality, but once its there, it gets improved upon. If it has bugs they get fixed, not covered up. and yes, i have two machines, guess what, they both run linux, cuz it does what i want and will do what i need to later.
Patience is a virtue
..would be a multimedia-oriented linux distro. Good stuff to include would be MP3 players/encoders, WAV players/recorers, MIDI sequencers, various video players, and of course a fully functional DVD player. It would not be necessary to include most of the various server programs and such, since it would be oriented towards MM and the idea would be to have the system do the best it could.
Min specs call for a 600Mhz proccesor(at least), because the Mpeg player is just a pixal pusher. It is highly unoptimized. Doing just video you can do it on a 450 (that is what my box is), but not a 300 and soudn works on 300.
Do you changes clothes while making the "chee-chee-cha-cha-choh" transformation sound?
The page recommends 350mHz with 128M RAM for video alone, 600mHz for video and audio (there are software decoders for Windows that require significantly less horsepower simply because the software is more optimized). There are not yet any decoder cards that work with Linux. Another requirement that is not mentioned in the HOWTO is that you must be running a 16-bit X server.
Even if you could copy them, and post them, who would want to, do you realize how much bandwith it would take up to upload an 'entire' movie? The only reason that mp3 piracy is a problem, is the average mp3 is only 5 megs, and what's that, couple min download with a decent modem? But, you get up to a couple hundred megs (actualy more) for a DVD film, yer talking some serious d/l time here. It's just not worth the trouble (unless of course your on a lan (like in a collage), but even then, the only other people who would have easy access are few)
Not much of a threat
http://www.xpurple.com
This is very early software, not optimized at all. Software solutions for linux will be able to play with 300Mhz eventually. This is a major leap that wasn't expected to occur untill much later.
Do you changes clothes while making the "chee-chee-cha-cha-choh" transformation sound?
As I understand it, however, much of the code in the "Linux DVD" codebase has been generated by disassembling Windows code and converting to C. This is pretty shady at best from a legal perspective. Anyone care to clear this up?
The HiVal ones that suck int he disk are good. :) Just about any drive will work. As long as it can be seen as a normal drive it will work fine (i.e. you should ahve no problems with a perticular DVD drive)
Do you changes clothes while making the "chee-chee-cha-cha-choh" transformation sound?
The actual name of the package is nist. It's here or in the LIVID cvs server. I recommend the binary version from the web page, it's a bit difficult to compile right now.
This
IBM have not ported Viavoice to Linux. They have the engine binaries and an SDK available. it is not supported, and since linux sound support is so bad, even if you did manage to build a working task, and managed to get it to talk to the engine, and managed to make a front end, you'd be lucky to get it working on anything apart from a particular spec of machine. Typing is, however, still faster.
"The new wave is not value-added; it's garbage-subtracted" - Esther Dyson, Dec 1994
The main reason not to use Linux is that your company IS department is cramming Windows down your throat and your only choice is to not use a computer at all. Side reasons are specialized applications like SAS JMP or lack of drivers for hardware like ComputerBoards A/D stuff and Camille. I don't think your other reasons are very persuasive.
CORBA, according to a lot of surveys is more widely used than COM. RAD in the form of Py/Tk/C is very slick, and there still isn't an editor anywhere that can do what Emacs can. Central registries are interesting in theory but the fact is that in real life they get corrupted by poorly written software leading to the help desk advising people "reinstall to fix any bugs you may have" or a system upgrade resulting in having to reinstall all applications as well. To me a the central registry in Windows leads to massive long term system instability and is one of the best reasons to run Linux.
As far as GUIs crashing, I have far more Windows Explorer crashes than I ever get from XFree.
Microsoft IE 5 is the best web browser currently available. But it also is a bloated pig in terms of system resources and does not fully adhere to standards, and I'd bet in the not too distant future will be surpassed by Mozilla. In the meantime Netscape is quite 'decent' thank you.
The DV iMacs (the ones with DVD drives) are 400 MHz G3's and from what I've heard, the audio and video often get out of sync. For smooth decoding, either a hardware decoder or a really fast CPU is required.
Since it took me several tries to get through - /. effect and all, I took the liberty of copying the howto from the aforementioned page.
* ** * **
* ****************/
linuxdvd.webjump.com/"
***********************************************
This comes from the URL listed above and is not my
own personal work.
***********************************************
To watch a DVD film in Linux you should follow the following steps (to complete the hack, as in challenge, not crack!).
1) Get the DVD encryption kernel patch from http://atv.ne.mediaone.net/linux-dvd/ It is the file "linux-dvd-2.2.12.1.diff.gz"
LOCAL MIRROR
Insert it into the 2.2.13 kernel with the command "patch output.vob
10) Play the Movie.
mpeg2player -vob -f output.vob
(use the option -na for no sound)
(use the option -nv for no video)
11) You can use ac3dec to just play the sound if you want.
/**********************************************
Comments:
You will not be able to play both video and sound in the current configuration unless you have some sort of a high end system. Min
requirements would have to be a 350Mhz for just sound or Video. (At least 128MB mem) Min Req for both sound and video would have to
be somewhere around a 600Mhz. The highest I have tested it on is a 450. The reasoning behind this is that the code is very very new and
hasn't yet been optimized at all. I have no clue as to dual system.
There is only one button, so to say. That is PLAY. Once you start a film you have to quit the program to end it! Even then, you have to
have the vob files lined up. You could stream them from the cd-rom to the decoder to the player, but that would require a insane system.
And mpeg2player doesn't do streaming yet ( | ), but we would all appreciate it if someone would simply submit a patch to the author that
would allow it.
There is no Menu functionality whatsoever. You can only view it in DVD size 769*239 (something like that). That is how big it is on the
screen. You can't get Subtitles or any of the other fun stuff. You can't grab any or the sub picture or handle the navigation at all.
At some point shortly (MAYBE) a lot of this will be merged together to form a software backend for the Linux DVD API. [link]. Thus
you will be able to use a player (any player) to play the movie without having to do all of this. But that is a long way down the road to have
this software work in full. The Linux-DVD API is being developed by the DVD hardware group who will be releasing hardware decoders
around Christmas that support that API. And then you will not need this software at all. Other groups will also be coming out with a fully
functional (and much faster compared to todays hack) software decoder within the turn of the millenium , that will support everything that a
DVD does.
Full screen does not work, nor can you resize the window.
Please do not post silly comments to the mailing list. When this gets on slashdot please use the feedback on slashdot to handle any
minor issues that you will have. Please do not badger the authors to make bug fixes or to do something. These people have been working
at it for a long time and will do it when they see fit. PLEASE debate the ethical side of this on slashdot and NOT on the newsgroup.
Thanks.
For all those out there that thinks that this is a wonderful chance to copy the DVD, think again. Yes, you do have full access to the drive
and you would be able just copy the files somewhere else. The only thing is that you need somewhere to copy it too. The only place to put
it is on a DVD-RAM. And that is around $25 for a disk. The real DVD is $15 to $20. So it is quite silly to copy it to DVD-RAM. Also
you simply copy the decrypted files you won't be able to run it as a DVD at ALL. You get funny video, or really weird shit, but none of the
DVD features at all. This hack was NOT meant as a DVD-RIPPER. And it is almost the exact opposite of that. There are windows
programs that are designed for that and those are the people that you should be yelling at about this.
Linux - Because Mommy taught me to Share.
And truth be told, this bothers me none. The multimillion dollar movie does not help my world at all -- rather the contrary, instead of promoting my health, education, or well being in any way, shape, or form, the Hollywood giants get bigger, the recording industry expands, the money eater eats money, and someone whose daddy was rich, gets richer. And what good are patents, when they directly inhibit a healthy economy by promoting stagnation and monopolies. What good are copyright laws that prevent modern Disney films from being referenced in a text book from which I wish to learn.
What good is music I cannot listen to. And why must the recording industry insist on making people famous, despite their obvious lack of talent, and thereby truncating any forwards my society has fought for local, true, non-mass entertained culture. I say let MP3's thrive, and so will our choice in music, and let true popularity be shown.
And of movies? Movies make money from commercials, food companies, advertising agencies, theatres, rental outlets, and royalties. How much money do they need? Good movies make good money, as they should. But I have been to countless bad movies, whereby my spent money has left me with only the return of bitterness or exhaustion, frustration or sadness. Whomever made the movie, makes their, in my opinion of the movie, undeserved dollar. Is this fair? No.
Then what would be fair? I say let me copy DVD's, let me copy MP3's, let me have that moment of entertainment, without worrying about some rich person's pocket money. I have enough issues with money not to have to think about someone else's whenever I seek to be entertained.
At some point of earning money, I conclude, the possession of more money is fundamentally wrong.
How is this a flame. I merely said Linux was not for servers as the poster claimed. That does not mean it cannot raise to a server OS, it means that the origional goal was not for a server machine, and was an offshoot. Many also want linux to be a desktop OS, an imbedded OS, etc. That means Linux is many things, and not one. Calling that a flame of Linux is absurd.
The rest would be too if considered a flame. Linus has said he considered himself the best programmer in the world when he began Linux, and that's ego, whether he was or was not. That's good, or else he may not have taken the task. He wasn't happy with Minux, which is why he created Linux, and Xenix was popular (many people liked Xenix, because it was functional and had support).
The rest was 'what OSes have their goal for servers?' FreeBSD is a good x86 OS designed for servers, which means its better at some tasks while worse at others. Don't kid me by claiming AIX and Solaris are not server class OSes, because both are well respected and powerful unix OSes on their platforms.
Linux is superior to all of these in various ways, but each are superior to linux, and each other, in various ways. Pretending nothing else except Linux exists and is useful is pure ignorance. Take my karma away, fine (who cares?), but don't be so thick headed as to claim anything that does not flaim a different, non-Linux based OS is thereby a flaim towards Linux. Linux is modelled after UNIX, so there has to e some good things to UNIX, and as there are other UNIX OSes, there must be some good things about them too. Its mere logic.
"Open Source?" - Press any key to continue
Well, this is all good and great, but we have a lot of data streams we have to break still :) .wav or .mp3 or something
-Quick time came up a few weeks ago on slashdot.
-We need to come up with a good GPLed VCD player (I can't find any, youknow of one?)
-console based Real-Audio receiver that can save to
So while we have a way of watching dvds now, we still have a lot more work that needs doing before we can do everything other OSs can.
OFTC: By the community, for the community
1- But I don't want to replace my system, dual PPro 150's, 128MB RAM, nice case, PC Power & Cooling power supply, none of it will work in a new system, and I am happy enough with it now.
1a-a hardware decoder will always be less of a strain on the system than doing it in software. DMA from the drive to the card, and from the card to your video card. Shouldn't eat more than a few % of your cpu.
2-I cannot argue with that, IF you have a fast enough cpu. In a GPL sense, not as long as there are patents on any part of it, and I expect there are.
3&4-well, yeah.
5-hey, and they don't take a PCI slot anyways. But I'm not replacing my Libretto any time soon either. And I bet hardware is easier on your battery. If you have the space, why not use hardware?
There is a place for hardware decoders, yeah, next summer, when I upgrade to a dual 1ghz Athlon system, software will be great, but until I get around to it (and it may be longer than that), hardware is the only way for me to watch it. Well, when it finally works under Linux.
Plato seems wrong to me today
The stuff is trade secret and not patented. This is where the fuzzy line comes into play. It doesn't need to be cracked then technicly, just figured out.
Do you changes clothes while making the "chee-chee-cha-cha-choh" transformation sound?
Ohmigod, Ohmigod, Ohmigod!!!
Can you tell I'm excited? Here's the fourm to say what I need to say. FUCK YOUR ENCRYPTION! Does anyone remember when we thought this was impossible, and that even if it weren't, it would need a hardware decoder? Well, the Linux-DVD team has proven them all wrong.
Oh, and any posts about the "ethics" of this are pointless to say the least. When you pay for a DVD, you pay for the right to watch it, and enjoy it. Should you be penalized if you aren't using Windows to view it?
I love you Tux, I love you Linux-DVD team, I love you Slashdot.
By the way, I heard about people using their DVD drives under Linux (for data DVDs) back in Janurary. I never thought I would see the Matrix playing in an X-Window.
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I'm glad of these breakthroughs mostly because, as it stands, a DVD I buy in France can't be played with an American DVD player. If the addage is true that information should be free (as in freedom), then this is a terrible thing. It's especially bad since many films are not available outside their own regions--for example, there's a "director's cut" of the movie called in America *The Professional*, which is called *Leon: version integrale" which is only available in Europe. The American version of the film is fluff, but the French version is beautiful--they won't ever release it in the U.S. because 13-yr.-old Natalie Portman (Queen Amidala in her latest role) asks Leon to sleep with her, and though he refuses he does take her out to help him in his job as a hitman and teach her the ropes. None of that happens in the U.S. censored version. That's just one version. Now we're closer to breaking down the barriers of film-industry censorship, and that's a great thing. Thanks to the hackers and code-breakers who did this work. Thanks a lot.
"The more corrupt the state, the more numerous the laws."--Tacitus, *The Annals*
Read the description in NTK of how the crypto on a DVD is organised: the whole disk is encrypted with a single random key, then the key is itself encrypted several times, once for each DVD manufacturer. Your DVD player will have only one of these manufacturer master keys built in, so the corresponding encrypted key needs to be on the disk for you to read it.
The nasty bit is this: the idea was that if a given key is leaked, they simply stop using it on newly pressed disks. Bang: the key in *your* brand of DVD player was leaked, so now neither you nor anyone else with a player from that manufacturer can play new disks. This threat has never been carried out.
Fortunately, they screwed up the crypto: master keys can be brute forced in a few days. Basically DVD locking is dead; they'd have to come up with a forward-and-backward incompatible "DVD Plus" format to rescue things now.
However, this is so far the industry's best effort at a universal copy-resistant format; as the tide turns our way, it might hopefully be their last.
--
Xenu loves you!
That is what you're suggesting, right? Because of course, movies cost a hell of a lot of money to make. Movie companies aren't going to spend $100M+ on a movie like Titanic if they are forced to give away their movies for free. (Because they're "too rich"?) Sure, they could still charge people to see the film in theaters, but that will become increasingly irrelevant as home theater technology advances.
That reason alone is plenty explanation for why you can't copy movies. But I can't let the many snide remarks about "rich" movie companies go by without comment. Let's assume, for the sake of argument, that Rupert Murdoch and Ted Turner and their peers really are completely selfish and amoral. When you steal movies from them, since they're already so rich anyway, do you think they're just going to smile and take a pay cut? Of course not. They'll close a studio, putting hundreds of minimum-wage workers out of a job... they'll cancel interesting or controversial projects, in favor of guaranteed money-makers like Big Daddy... they'll raise prices on whatever it is that they're still alowed to sell... and everyone else will be hurt.
I must say, I lose a bit of respect for
MSK
You should never take life too seriously - You'll never get out of it alive.
I accually have a player in the works that will be done by the end of next week. It works to the LinuxDVD API specs, so as soon as this is converted into the standard the player will be able to work :) Read above for the two companies that are releasing DVD hardware cards in December. Yes other companies need to too. HOPEFULLY they will use the API that is allready in place. I player is allready skinable etc. :) If any of you patition them or even inquire ask them to follow the API that is allready in place. standards standars!
Do you changes clothes while making the "chee-chee-cha-cha-choh" transformation sound?
1. The Linux community has earned a reputation of not being willing to pay for anything.
2. The Linux market for things like this is sufficiently small that the companies figure that it's not worth spending the money to make sure that it works under Linux.
They don't sit around and say, "Yeah! Let's shut out all those Linux/Amiga/Etc. users, we don't want them watching our movies," they just don't yet see a business advantage in doing so.
Cheers,
ZicoKnows@hotmail.com
Does anyone just sit back and enjoy the hack anymore? It seems everyone wants to jump 20 steps ahead all the time. At least take a few seconds to give credit for the hack...
Here we have a person/group of people who complete a not so trivial task and the first thing people hit them with is, 'gee, is that all, it wont clean my room for me?'
At least give them a day to bask...
Or has the time come when none can rest and all must push for world domination by next tuesday at the latest?
Anyway, congrats to those who hacked...
-- Are you an EFF member yet?
Linux was never "for servers." Linux expanded to server, it was a desktop UNIX. Look at the history, Linus wanted a cheap, good UNIX on his desktop and wasn't happy with Minux, nor was going to pay for Xenix (SCO by that time?). He also had a big ego. :-)
If you want a server OS unix, you have FreeBSD whose goal was a server-class BSD unix on x86 (IMHO, its done a good job), or various nice UNICES, such as AIX or Solaris. But.. umm... don't think you'd often be watching dvds (heh.. and even already most are porn) on your Power4.
"Open Source?" - Press any key to continue
Let's face it. No matter how much we push the code, no matter how much we optimize the routines, no matter how fast our machine is, there is *no* way a software decoder, open source or not, will outperform & look better than a hardware decoder.
After we get the Linux-DVD project on the road to completion (now that CSS & Data encryption have been cracked, and a makeshift player has been put together -- way to go IceFox, a "snowball" effect is almost sure to start...) Within a few months, we should see quality (hopefully) GPL'ed players emerge. But there's something that really irks me. We need to concentrate on the manufacturers of hardware decoders. Creative has given somewhere between a very poor to slightly poor effort to bring drivers for it's DXR series of decoder cards to *NIX systems. They've opened up the SB Live drivers, but what of the DXRs? We need to e-mail, petition, press (not harass, just make our voices heard) to open up the source for the hardware decoder drivers. Many of you (including me and my DXR3) have a $70-$150 card in our computers that if we were to delete Windows, which some of us have, would become worthless to us. This is a shame -- and should be our next challenge to overcome.
Way to go on the software. Now we need to get the hardware.