Date: Tue, 11 Dec 2007 02:41:08 -0800 From: "Ted Mittelstaedt" <tedm@toybox.placo.com> To: "Gary Kline" <kline@tao.thought.org>, "Malcolm Kay" <malcolm.kay@internode.on.net> Cc: freebsd-questions@freebsd.org Subject: RE: copying DVD material :: somewhat OT. Message-ID: <BMEDLGAENEKCJFGODFOCOECPCFAA.tedm@toybox.placo.com> In-Reply-To: <20071209101050.GD4442@thought.org>
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> -----Original Message----- > From: owner-freebsd-questions@freebsd.org > [mailto:owner-freebsd-questions@freebsd.org]On Behalf Of Gary Kline > Sent: Sunday, December 09, 2007 2:11 AM > To: Malcolm Kay > Cc: Gary Kline; freebsd-questions@freebsd.org > Subject: Re: copying DVD material :: somewhat OT. > > > On Sun, Dec 09, 2007 at 01:56:55PM +1030, Malcolm Kay wrote: > > On Sun, 9 Dec 2007 07:33 am, Gary Kline wrote: > > > > > > Folks, > > > > > > IFF k3b works, and I think it might, I'll put up a howto > > > on my bsd virtual site. Make this domain more useful. > > > The help from this group has been outstanding, but getting things > > > CD and DVD actually working has been a study in persseverancce. > > > > > I don't use k3b so what capability it has is not known to me. > > So far I've only used it to burn CD's; beyond that ... . > > > > > That said, first,if there is a website for total dweebs, please > > > post it; or send it privately. I just bought some "Memorex > > > DVD+RW" ; I want to record a 117 minute commercial DVD. > > > On the back on the DVDs is says these are only good for 60 minutes > > > in great qualty; it is good up to 120 minutes, and so on. > > > > The nominal capacity of the single sided DVD is 120 minutes but some 32 > > different definitions are recognised including: > > EP -- extended play - 360 minutes > > LP -- long play - 240 minutes > > SP -- standard play - 120 minutes > > FINE - 60 minutes > > But how are you getting your source? What definition is it in? > > The back of the disc says: "Aprox 117 minutes"; so evidently it was > mastered in SP. If there are *32* defs, man, I miht as well throw in > the towel and go back to my Shostakovich. (Unless these definitions are > largely air (== "PR stuff, aka hype). > Hi Gary, You mentioned you wanted to record a 117 minute COMMERCIAL dvd. Now, before I continue let me explain that doing so is illegal in the US. All commercial DVD's are encrypted and the DMCA makes decrypting of them illegal, it even makes it illegal to give someone a copy of a program that will decrypt them, it makes it illegal to even write and post online the source code to such a program. It is NOT illegal to print up such source code in a paper book and sell it - the authors of DMCA wanted to duck the 1st amendment - Google DeCSS for an understanding of the controversy. With this in mind understand that CSS was broken years ago. Because of this, the DVD producers figured out that copying wasn't much of an obstacle to the unwashed masses, particulary when free programs for Windows began to show up. Many people with children have found that they accumulate a large number of Disney videos. They have also found the kids tend to scratch the shit out of them. So there is a large interest in being able to copy these things and store the masters safely away, then give the kids the copy to destroy. So all copying of commercial DVD's is not for piracy and I think people who assert this are moronic idiots. Further, with Disney DVD's, Disney lately has taken to inserting commercials for Disney cruise lines and other garbage into the DVD's that are NOT skippable with a normal DVD player. Responsible parents do not wish their kids to view this crap and so naturally there is another reason to copy these - to remaster them to prune out these commercials so the kids don't view them. Also illegal under the law as the copyright holder hasn't given you permission to do this. Anyway, Disney is greedy and wishes people to continue to buy replacement DVD's for ones they already own, and they want to push their crappy and junky cruise lines. So they take a dim view of copying. They know the CSS has been broken so these days they use all manner of different copy protection. One system is to intentionally press the DVD with some sectors using invalid CRC's thus a regular block ISO copy program will hit these sectors and assume the DVD is bad and abort. The menu on the DVD avoids these sectors, naturally. The latest trick is to damage the filesystem on the DVD in such a way as to make the DVD readable by a DVD player but not by a computer DVD drive. Pirates of Carribean 3 has that one, for example. There are many other copy protection tricks, it is a cat-and-mouse game that entire websites are devoted to following. Interestingly, since so many of these schemes utterly violate the DVD standards, companies like Disney are not allowed to use the official DVD logos on the boxes that they package their DVD's on. That is why Disney for example has their own logo - Disney DVD - which is meaningless under the standard. So far, of the HD formats, HD-DVD encryption has also been cracked and Blue Ray has not. That is why this Christmas Disney is pushing Blue Ray and isn't making their movie titles available in HD-DVD. Anyway, the fact is that none of the open source DVD copying programs can really deal with these advanced systems. They can deal with CSS but that's it. If your plan is to copy commercial DVD's for your own use, you should be aware of all this. Right now, the most advanced DVD cracking programs that will deal with ALL of the perverted copy protection schemes in use are only available as commercial programs for Windows. (Some trialware, some not) And none are available over-the-counter in the US, you have to download them from foreign websites. Ted No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.5.503 / Virus Database: 269.17.0/1180 - Release Date: 12/10/2007 2:51 PM
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