[Smartripper V2.34]
(Possibly a software DVD Player for authorization)

There have been quite some software titles available to decrypt the CSS encoding and protection scheme used by most DVDs. It started with DeCSS which just featured a reverse-engineered XingDVD decryptor. After the industry just took XingDVD codes out of their DVD's they thought they were safe.

But with DeCSS there was a tool that uses a cryptographical approach to retrieve valid decoding-codes from within the VOBs. SmartRipper is not only a GUI but a stand-alone ripper using the algorithms of DeCSS and also featuring all the features of Demuxers like VSTRIP. Here's how to use it:

• Download the Smartripper Package and unzip into a directory of your choice.
  
• Insert your DVD to be ripped into your DVD Rom Drive
  
• Fire up SmartRipper
  (now Smartripper tries to authenticate the DVD and parses the included IFO File which includes all valuable information about the movie)
• Look at the Source Frame
  
  
• Select the Input tab
  
  
  
  
• Choose which part of the DVD you want to rip
  (normally Smartripper already chooses the main movie.. but you might want to check the length of the movie to ensure you got the right one)
  
• Now move to the Stream Processing tab.
  (before proceeding you should know what you want to do with the different audio-tracks !!!)
  
  
  
  
• Check the Box called Enable Stream Processing
  
• Uncheck all the Streams (language/subtitle) that are of no interest for you
  
• Now I'm going into more detail with the Audio Streams:
  (on the right of the Stream Selector you will find some checkboxes. If you want to use one of the audio streams as described below just follow the instructions for the checkboxes)
  
  a)Multiplexing Dolby Digital AC3 Stream with the new Video
  - Choose Demux to extra file
  
  b)Multiplexing MP3 Stream with new video (using FlaskMPEG)
  - Choose Direct stream copy
  
  c)Multiplexing MP3 stream with new video (decoding with DirectShow)
  - Choose Extract to new VOB
  - Click on Map to and choose 0x80
  
  
• Click on the Folder in the Target frame and choose destination directory
  
• Hit START
  
  
• The decryption should start and the status bar should show decrypting
  (also in the file-view in the pane VobKey you should the keys of the files)

Note:
If nothing of the above happens and the system just hangs fire up a software DVD-Player and start playing the movie for authentication.

Now you have the decoded VOBs on your harddisks for further conversion.