CD/DVD copy protection is a blanket term for various methods of copy protection for CDs and DVDs. Such methods include DRM, CD-checks, Dummy Files, illegal tables of contents, over-sizing or over-burning the CD, physical errors and bad sectors. Many protection schemes rely on breaking compliance with CD and DVD standards, leading to playback problems on some devices.

• Cd Copy Protection Software
• Cd Copy Protection
• Cd/dvd Copy Protection From Trust Cont
• Cd Copyright Protection

1. HexaLock CD-RX media are specially made CD-R's that contain a pre-compiled session, which includes security elements that make the discs copy protectable. The program files are linked to these security elements during the recording process, thus creating a copy-protected CD-R.
2. CloneCD also works with other formats such as ISO and UDF files and copies CDs/DVDs with the new SafeDisc 3 Copy Protection System. CloneCD allows you to create perfect 1:1 copies of your valuable original compact discs. Should your copy-protected music CD not play in your car audio, the backup created by CloneCD will.
3. Oct 12, 2019 As one of the best software to copy protected DVD, WinX DVD Copy Pro is able to clone DVD to DVD, ISO, Video TS folders as well as common digital video formats with original quality retained. With this copy program, users can get access to all kinds of protected DVDs, including those with protection of region codes, Disney Fake and so on.
4. Copy-Discovery 2000 is a CD/DVD copy protection scanner. It will scan discs, files or entire folders in order to detect the copy protection. It uses a plugin dll system to add additional functionality.

Effective CD protection (for Music CDs, Video CDs, Data CDs, Games, EBooks, other books, photos and images) and CD copy protection is what you require to leverage your business, give it that cutting edge and of course, increase your profits. You have a requirement and we have the solution!

Protection schemes rely on distinctive features that:

• can be applied to a medium during the manufacturing process, so that a protected medium is distinguishable from an unprotected one.
• cannot be faked, copied, or retroactively applied to an unprotected medium using typical hardware and software.

Technology[edit]

Filesystems / Dummy files[edit]

Most CD-ROMs use the ISO9660file system to organize the available storage space for use by a computer or player. This has the effect of establishing directories (i.e., folders) and files within those directories. Usually, the filesystem is modified to use extensions intended to overcome limitations in the ISO9660 filesystem design. These include Joliet, RockRidge and El Torito extensions. These are, however, compatible additions to the underlying ISO9660 structure, not complete replacements or modifications. The most basic approach for a distinctive feature is to purposely fake some information within the filesystem. Early generations of software copied every single file one by one from the original medium and re-created a new filesystem on the target medium.

Sectors[edit]

A sector is the primary data structure on a CD-ROM accessible to external software (including the OS). On a Mode-1 CD-ROM, each sector contains 2048 bytes of user-data (content) and 304 bytes of structural information. Among other things, the structural information consists of

• the sector number, the sector's relative and absolute logical position
• an error detection code (EDC), which is an advanced checksum used to detect (if possible) read-errors
• an error correction code (ECC), an advanced method of detecting and correcting errors

Using the EDC and ECC information, the drive can detect and repair many (but not all) types of read-error.

Copy protections can use these fields as a distinctive feature by purposely crafting sectors with improper EDC/ECC fields during manufacture. The protection software tries to read those sectors, awaiting read-errors. As early generations of end-user soft/hardware were not able to generate sectors with illegal structural information, this feature could not be re-generated with such soft/hardware. If the sectors forming the distinctive feature have become readable, the medium is presumed to be a copy.

A modification of this approach uses large regions of unreadable sectors with small islands of readable ones interspersed. Most software trying to copy protected media will skip intervals of sectors when confronted with unreadable ones, expecting them all to be bad. In contrast to the original approach, the protection scheme expects the sectors to be readable, supposing the medium to be a copy when read-errors occur.

Sub-channels[edit]

Beside the main-channel which holds all of the user-data, a CD-ROM contains a set of eight sub-channels where certain meta-information can be stored. (For an audio CD, the user-data is the audio itself; for a data CD, it is the filesystem and file data.) One of the sub-channels — the Q-channel — states the drive's current position relative to the beginning of the CD and the current track. This was designed for Audio-CDs (which for a few years were the only CDs), where this information is used to keep the drive on track; nevertheless the Q-channel is filled even on into the CD-ROM itself but part of user-controlled data.

A part of an unprotected CD-ROM may look like this (simplified):

When the drive is told to read from or seek to sector 6553, it calculates the physical distance, moves the laser-diode and starts reading from the (spinning) disc, waiting for sector 6553 to come by.

A protected CD-ROM may look like this:

In this example, a sector was inserted ('Mary') with a sector-address identical to the one right before the insertion-point (6553). When the drive is told to read from or seek to sector 6553 on such a disc, the resulting sector-content depends on the position the drive starts seeking from.

• If the drive has to seek forwards, the sector's original content 'Jill' is returned.
• If the drive has to seek backwards, the sector's twin 'Mary' is returned.

A protected program can check whether the CD-ROM is original by positioning the drive behind sector 6553 and then reading from it — expecting the Mary version to appear. When a program tries to copy such a CD-ROM, it will miss the twin-sector as the drive skips the second 6553-sector, seeking for sector 6554.

There are more details about this technique (e.g. the twin-sectors need to be recorded in large extents, the SubQ-channel has to be modified etc.) that were omitted. If the twin sectors are right next to each other as shown, the reader would always read the first one, Jill; the twin sectors need to be farther apart on the disc.

Data position measurement[edit]

Stamped CDs are perfect clones and have the data always at the same position, whereas writable media differ from each other. Data Position Measurement (DPM) detects these little physical differences to efficiently protect against duplicates. DPM was first used publicly in 1996 by Link Data Security's CD-Cops. SecuROM 4 and later uses this protection method, as do Nintendo optical discs^{[citation needed]}.

Changes that followed[edit]

The Red Book CD-DA audio specification does not include any copy protection mechanism other than a simple anti-copy flag. Starting in early 2002, attempts were made by record companies to market 'copy-protected' non-standard compact discs. Philips stated that such discs were not permitted to bear the trademarkedCompact Disc Digital Audio logo because they violate the Red Book specification. There was great public outcry over copy-protected discs because many saw it as a threat to fair use. For example, audio tracks on such media cannot be easily added to a personal music collection on a computer's hard disk or a portable (non-CD) music player. Also, many ordinary CD audio players (e.g. in car radios) had problems playing copy-protected media, mostly because they used hardware and firmware components also used in CD-ROM drives. The reason for this reuse is cost efficiency; the components meet the Red Book standard, so no valid reason existed not to use them. Other car stereos that supported CD-ROM discs containing compressed audio files (such as MP3, FLAC, or Windows Media) had to use some CD-ROM drive hardware (meeting the Yellow Book CD-ROM standard) in order to be capable of reading those discs.

In late 2005, Sony BMG Music sparked the Sony CD copy protection scandal when it included a form of copy protection called Extended Copy Protection ('XCP') on discs from 52 artists.^[1] Upon inserting such a disc in the CD drive of a computer running Microsoft Windows, the XCP software would be installed. If CD ripper software (or other software, such as a real-time effects program, that reads digital audio from the disc in the same way as a CD ripper) were to subsequently access the music tracks on the CD, XCP would substitute white noise for the audio on the disc.

Technically inclined users and computer security professionals found that XCP contains a rootkit component. After installation, XCP went to great lengths to disguise its existence, and it even attempted to disable the computer's CD drive if XCP was forcibly removed. XCP's efforts to cloak itself unfortunately allowed writers of malware to amplify the damage done by their software, hiding the malware under XCP's cloak if XCP had been installed on the victim's machine. Several publishers of antivirus and anti-spyware software updated their products to detect and remove XCP if found, on the grounds that it is a trojan horse or other malware; and an assistant secretary for the United States' Department of Homeland Security chastised companies that would cause security holes on customers' computers, reminding the companies that they do not own the computers.

Facing resentment and class action lawsuits^[2] Sony BMG issued a product recall for all discs including XCP, and announced it was suspending use of XCP on future discs. On November 21, 2005 the Texas Attorney General Greg Abbott sued Sony BMG for XCP^[3] and on December 21, 2005 sued Sony BMG for MediaMax copy protection.^[4]

United Kingdom position[edit]

The provisions of law allow for redress to buyers of Audio CDs with Copyright-Protection. The Copyright, Designs and Patents Act 1988 contains provisions in section 296ZE part VII that allow for '[a] remedy where effective technological measures prevent permitted acts'.

In practice, the consumer would make a complaint to the copyright holder of the Audio CD, usually a Record Label. The complaint would contain a request to the holder of the copyright to provide a 'work-around' in order to make use of the copy-protected CD, to the extent that a non-copyright protected CD could be used lawfully. Where the consumer believes the copyright holder has not been reasonable in entertaining the request, they are within their rights under the Act to make an application to the Secretary of State to review the merits of the complaint and (if the complaint is upheld) to instruct the copyright holder to implement a work-around circumventing the copyright protection.

Schedule 5A of the Copyright, Designs and Patent Act 1988 lists the permitted acts, to which the provisions of section 296ZE apply (i.e. lists the cases in which the consumer can use the remedy, if the copy protection prevents the user doing a permitted act).

See also[edit]

References[edit]

1. ^'Archived copy'. Archived from the original on 2008-12-24. Retrieved 2008-12-24.CS1 maint: archived copy as title (link)
2. ^BBC NEWS | Technology | Sony sued over copy-protected CDs
3. ^Texas Attorney General
4. ^Texas Attorney General

External links[edit]

For you DVD fans who have a large collection of DVD discs, you may want to find out a better way to keep your DVD contents. The quickest way is to make a backup copy of the DVD to hard drive or your computer. Well, it is easy for home-made DVDs, but not commercial encrypted DVDs. Most commercial DVDs are copy-protected, then how to copy protected DVD for backup? A natural way out of this issue is to seek the help of a reliably protected DVD copy software. For the details, please turn to the following part and read the elaboration.

CONTENTS

• 1. What is Copy Protected DVD?
• 2. How to Copy Protected DVD with the Best DVD Copy?

Part 1. What is Copy Protected DVD?

Generally speaking, copy protected DVD is a DVD implement some protection mechanism into the coding way of the DVD contents. Currently, there are 3 types of DVD protections in the market.

Cd Copy Protection Software

Region code: This DVD copy protection means DVD divides into 6 regions depending on the distributed country and region. You need to get the corresponding DVD player to play the DVD.

CSS (Content Scrambling System): This is a digital rights management (DRM) and encryption system used to stop DVD from being illegally copied or piracy.

Cd Copy Protection

Disney X-Project DRM Protection: This is a copy protection technology invented by Disney for Disney holds strict defense to its brands and serial product. Most Disney DVD discs have met this DRM restriction.

In most cases, your purchased DVDs may come into one of the encryption method. Thus, if you want to play them, you need to copy them to new DVD disc or for backup as ISO files or DVD folders first, and that is why you need to take the protected DVD copy software into account. Now, we are willing to offer you a nice friend to solve the annoying situation.

Cd/dvd Copy Protection From Trust Cont

How to Copy Protected DVD with the Best DVD Copy?

On this issue, VideoSolo DVD Copy is the best software I would highly recommend to you. This program serves as the best choice to eradicate the DVD copy protection with superior performance. It can copy and decrypt commercial DVDs to new DVD disc or save as ISO image files or DVD folders with 1:1 original quality. What's more, after decryption, you can choose the suitable copy mode and make copy as you like among three copy modes including Full Copy, Main Movie and Customize. The whole process will be very fast and suitable.

Below is a simple solution on how to copy protected DVD, I will take 'save as ISO image files' as an example, please check.

Step 1. Import Source Files

When you downloaded and installed the VideoSolo DVD Copy on your computer, launch the program to enter into the main interface. Click the button of 'File' then 'Select Source' to import the DVD disc. It generally takes few minutes to load files.

Step 2. Choose The Target Format

After importing the files, the program will automatically decrypt and load the contents out to the DVD copy. Then you can select the 'Target' button and choose the output format you want. Here you need to choose 'Save as ISO'.

Step 3. Select Copy Mode

There are 3 copy modes including 'Full Copy' which means copying the whole DVD disc; 'Main Movie' which means copying the main movie only; and 'Customize' which means copying the parts of DVD you like.

Step 4. Start Copying Protected DVD

Finally, when all the settings are done, you can just click on 'Start' button to copy your DVD movie.

When it is finished, please find the files on the target folder and you can do everything with the files as you like. Please note that if you want to copy the protected DVD into a new DVD disc and your computer has 2 disc drives, you can easily go through with the above steps, or you should copy your DVD movie into ISO image and then burn the ISO image to a new blank DVD.

Cd Copyright Protection

In a word, when you come with a powerful third-party tool like VideoSolo DVD Copy, you can copy protected DVD for backup without efforts. The program is very easy-to-use and perfectly suitable for backing up protected DVD. While, if you think that to decrypt and rip protected DVD to digital is more cconvenient to back up the DVD, then you may go with this method, which is also a widely adopted method. Why not dowaload and try it yourself?