GlockTalk.com
Home Forums Classifieds Blogs Today's Posts Search Social Groups



  
SIGN-UP
Notices

Glock Talk
Welcome To The Glock Talk Forums.
Reply
 
Thread Tools Display Modes
Old 12-28-2006, 20:47   #1
poodleshooter1
Senior Member
 
poodleshooter1's Avatar
 
Join Date: May 2005
Posts: 2,110
Is there a way to tell if a DVD or CD has been "ripped"?

I am assuming that with all the technology out there these days, there has to be some way for companies to tell if a DVD or CD has been ripped for copying.

My friends are amazed at the number of CD's and DVD's that have no protection whatsoever. I keep telling them that it is too easy that there has to be something that shows that the item has been ripped.

Is there? What is it/are they called?
poodleshooter1 is offline   Reply With Quote
Old 12-28-2006, 20:53   #2
BilltheCat
Quieter Cat
 
BilltheCat's Avatar
 
Join Date: Apr 1999
Location: Sanford, Florida
Posts: 14,282


nothing I know of. it either doesnt allow copy or it does. Some programs will even defeat the ones that dont want to allow it.
__________________
veteran - whether active duty, retired, national guard or reserve - is someone who, at one point in his life, wrote a blank check made payable to "The United States of America", for an amount of "up to and including my life." That is honor, and there are way too many people in this country who no longer understand it. -- Author Unknown
BilltheCat is offline   Reply With Quote
Old 12-29-2006, 12:49   #3
poodleshooter1
Senior Member
 
poodleshooter1's Avatar
 
Join Date: May 2005
Posts: 2,110
67,000+ members, only one reply...
poodleshooter1 is offline   Reply With Quote
Old 12-29-2006, 13:24   #4
HAVOC
CLM Number 178
Remember
 
HAVOC's Avatar
 
Join Date: Jun 1999
Location: Location: Location:
Posts: 9,198
Send a message via MSN to HAVOC Send a message via Yahoo to HAVOC
Re: Is there a way to tell if a DVD or CD has been "ripped"?

Quote:
Originally posted by poodleshooter1
I am assuming that with all the technology out there these days, there has to be some way for companies to tell if a DVD or CD has been ripped for copying.

My friends are amazed at the number of CD's and DVD's that have no protection whatsoever. I keep telling them that it is too easy that there has to be something that shows that the item has been ripped.

Is there? What is it/are they called?
If you mean some evidence left on the original CD or DVD, no, there's nothing, ripping is just the drive just reading the disc. There's just no possible way to know if it's being played normally, copied to another disc or pulled into a binary file on a hard drive.

Some discs have imbedded information that can identify what original a copy or .iso came from, and some have intentional errors that can confuse regular copying and ripping software, but most of the better applications just ignore that stuff.
__________________
10mm... all the power you love from the 20mm, with half the recoil.

You can't reason someone out of something
that they didn't reason themselves into.
HAVOC is offline   Reply With Quote
Old 12-29-2006, 13:33   #5
rhikdavis
U.S. Veteran
 
rhikdavis's Avatar
 
Join Date: Jul 2002
Location: Late Great Planet Earth
Posts: 13,193
Blog Entries: 1
Send a message via Yahoo to rhikdavis Send a message via Skype™ to rhikdavis
Quote:
Originally posted by poodleshooter1
67,000+ members, only one reply...
It was a quality reply tho.
__________________
Charter OAF Member
"I don't know half of you half as well as I should like; and I like less than half of you half as well as you deserve."
rhikdavis is offline   Reply With Quote
Old 12-30-2006, 19:45   #6
Guod
Senior Member
 
Guod's Avatar
 
Join Date: Feb 2006
Location: Nelson, NZ
Posts: 6,668


I don't really understand what you or your friends are getting at. DVD's do have protection...it's an encryption scheme called CSS. DVD "rippers" use a decryption scheme known as deCSS.

http://en.wikipedia.org/wiki/Decss

As far as CD's, originally they had no copy protection because there was no need for it when it was created. More recently, copy protection has been added to CD's, but they are then no longer TECHNICALLY Compact Discs.

Moving back to DVD's, sure it may seem "too easy" to YOU and your friends, but that is because you didn't do the work to reverse engineer the technology. It's easy now because software is widely available that uses decss, and does everything in a simple process that even a technophobe can handle.

Additionally, AACSS, the "next gen" copy protection used on HDDVD and BluRay has been cracked. There is some debate on whether the current crack will work for multiple titles / long term, but it's only a matter of time until HDDVD and BluRay are as easily copied as DVD.

All of these copy schemes are created by humans, and therefore are never impossible to break.

What people fail to remember is that sure, there are smart people creating these systems, but there are countless more people that are as smart or smarter working to reverse engineer the technology.

This stuff often seems very mysterious and complex to joe consumer, but to those of an engineering backround, or just tinkerers with a good head on their shoulders, it's just a matter of time and effort.
Guod is offline   Reply With Quote
Old 01-01-2007, 09:51   #7
Cassius
Senior Member
 
Join Date: Apr 2006
Location: Indiana
Posts: 1,210
I think nobody answered you because your question is confusing...

You say "to show that they have been ripped"...

Do you mean to show on the ORIGINAL cds that they have been ripped? Or do you mean something on the duplicates to show that they came from a ripped CD and that it is not an original CD?

When you rip a CD the original CD does not change because CDs are read-only. There is nothing that changes about the original CD.

The duplicate CD, ideally, is an EXACT duplicate of the original CD, and so it also shows no sign of being "ripped" in any way (although I don't know what that would look like). This is called a byte-to-byte copy, and most of the fancier CD burning programs will have no problems defeating any copy protection and doing a direct copy.
Cassius is offline   Reply With Quote
Old 01-01-2007, 12:27   #8
NetNinja
Always Faithful
 
NetNinja's Avatar
 
Join Date: Oct 2001
Location: HotLanta, GA
Posts: 2,424
I think the question is posed in such a way that it is being asked if copying CD's and DVD's can be traced back to the source.

Is there a way to make copies of CD's and DVD's and never get caught?
Yes

Until one day you are pulled over for a broken tail light and the officer smells fear or your voice is stressed enough that he gets suspicious and asks to look in the trunk of your car.

"Woa! Officer those 5000 unmarked DVD's of Debbie does DVD's aren't mine".

__________________
G17,G22,G30,Sig P229 Sport
Kimber CC Series 1,Kimber CCR Series 1
SA TRP Operator SA 1911A1
S&W 1911, 686, M19, 627VComp,ColtDE10mm
Anschutz 1813 Super Match
NetNinja is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump




All times are GMT -6. The time now is 02:47.



Homepage
FAQ
Forums
Calendar
Advertise
Gallery
GT Wiki
GT Blogs
Social Groups
Classifieds


Users Currently Online: 627
193 Members
434 Guests

Most users ever online: 2,244
Nov 11, 2013 at 11:42