The CSS (Content Scrambling System) is the encryption method used in
commercial DVD production to prevent DVD data from being copied. The
sole purpose of the CSS is to protect copyrights by preventing the
pirating of DVDs. It utilizes a relatively weak, proprietary 40-bit
stream cipher algorithm. The system was introduced around 1996 and has
subsequently been compromised.
The CSS key sets are licensed by the DVD Copy Control Association
to manufacturers who incorporate them into products such as DVD movie
releases, drives & players. Most DVD players are equipped with a CSS
Decryption module. CSS key is a collective term for authentication key,
disc keys, player keys, title keys, secured disk key set, and/or
encrypted title keys. Some of the keys are stored on the lead-in area of
the disk, which is generally only read by compliant drives. Keys can be
passed from a DVD drive to a descrambler over a PC bus using a secure
handshake protocol.
The purpose of CSS is two fold. First and foremost, it prevents
byte-for-byte copies of an MPEG stream from being playable since such
copies will not include the keys that are hidden on the lead-in area of
the protected DVD disk. Second, it provides a reason for manufacturers
to make compliant devices, since CSS scrambled disks will not play on
noncompliant devices. Anyone wishing to build compliant devices must
obtain a license, which contains the requirement that the rest of the
copy-protection system be implemented.
How to remove CSS for making copies of your favorite video DVD?
It is very easy as long as you have Any DVD Cloner Platinum - The powerful DVD Ripping software for all encrypted DVDs!
Key features of Any DVD Cloner Platinum
1. Decrypt and remove all DVD copy protections including CSS.
2. Burn DVD to blank DVD disc or Copy DVD on hard drive as DVD folder or ISO Image File
3. Convert DVD to five different and commonly used video formats including MP4
4. Support NTSC and PAL types of commercial video DVD
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