View Full Version : Can I put a small corrupt file on a DVDR for copy protection?
808state
12th March 2003, 07:05
I am doing some VHS 2 DVDR authoring for some new clients and desperately need some form of copy protection against DVDRW(s). If I stick a corrupt file in a hidden directory on the beginning of the disc would this at least stop the average person from duping the disc? I realize there is no full proof technique “where there is a will, there is a way”; I just need to stop computer illiterate people!
Any help will be GREatly appreciated!!!
auenf
12th March 2003, 12:12
main problem is that the only real protections on DVD are CSS and Macrovision, both of which can be worked around.
you suggest putting a file at the start, which would make the disc not play on any standalones ;).
basically, you have nothing solid enough, but macrovision/CSS can deter the casual copier.
Enf...
808state
13th March 2003, 19:15
Why would sticking a corrupt file on the disc make it unplayable on a standalone? I’m not saying put the file in the VIDEO_TS folder, I am saying create a separate folder (directory) on the DVDR that has the corrupt file and name it MOVIE or some shite.
I have seen DVD authoring programs include demos and even software DVD players that are included in a separate directory from the VIDEO_TS & AUDIO_TS folders. From my understanding the standalones will ignore any folders (directories) other than the VIDEO_TS & AUDIO_TS folders, so my plan should work somewhat.
slk001
13th March 2003, 21:54
Originally posted by 808state
Why would sticking a corrupt file on the disc make it unplayable on a standalone? I’m not saying put the file in the VIDEO_TS folder, I am saying create a separate folder (directory) on the DVDR that has the corrupt file and name it MOVIE or some shite.
That is because a DVD is a FILE STRUCTURE, not a FILE SYSTEM. If you don't have your VIDEO_TS.IFO file at exactly 300H (don't quote me on this location), then your DVD will crash (ie, not be playable).
mpucoder
14th March 2003, 00:20
Not true. All the "files" that make up VIDEO_TS must be placed on the disk in an exact order, and the pointers in the VIDEO_TS.IFO determine where certain gaps must be, but the entire structure can start anywhere.
The other thing is, though, what is meant by "corrupt file"? No matter what the contents of a file are, it can be copied. And if the contents of the file are irrelevant to the video, then the file can be omitted.
Deepa DvD
14th March 2003, 01:37
...to stop some computer illiterate people. Just get one of those Pioneer's new DVD-RWs with CPRM (Content Protection for Recordable Media). I got a couple of those from Fry's Electronics a few months ago. Haven't tried disc 2 disc copy myself, But other people on the Sonic Forum said that it works as its supposed to be. But heyy, don't blame me if your clients DVD Player can't read the DVD-RW. ;)
(it's a DVD-RW-some older players can play dvd-r, but can't play dvd-rw)
deePA :)
Deepa DvD
14th March 2003, 02:08
here's a link (http://www.pioneerelectronics.com/Pioneer/CDA/Industrial/IndustrialProductDetails/0,1444,2363,00.html) :)
deePA
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