Tag Archives: css

How Does a DVD Player Work?

Mar 09th, 2012by Boren 3,531 views |Comments Off

It is nice to have pleasant memories stored on compact device and review it later for enjoyment. To record the first step your baby takes, the transition from crawling to walking, the first meaningless word that tells you a lot of definitions, etc. It is always a pleasure to aftertaste our yesterday’s memories. This can be achieved by DVD player and DVD player has become a necessary part of our life.

DVD is an optical storage disc which supports both video and audio encoding. DVD players are the tool that are used to play DVDs. It is essential that DVD players show original or equivalent output of what has been stored on the DVD. Then how does a DVD player work? Read More »

Content Protection for Prerecorded Media (CPPM)

Jan 05th, 2010by dvdxplayer 1,998 views |Comments Off

CPPM is used only for DVD-Audio. It was developed as an improvement on CSS. Keys are stored in the lead-in area, but unlike CSS no title keys are placed in the sector headers. Each volume has a 56-bit album identifier, similar to a CSS disc key, stored in the control area. Read More »

What is the CSS on DVD?

Nov 30th, 2009by dvdxplayer 3,788 views |4 Comments

Content Scramble System (CSS)
Because of the potential for perfect digital copies, paranoid movie studios forced a deeper copy protection requirement into the DVD standard. Content Scramble System (CSS) is a data encryption and authentication scheme intended to prevent copying video files directly from DVD-Video discs. CSS was developed primarily by Matsushita and Toshiba. Read More »