There are many reasons to capture sound from DVDs and convert them to the portable mp3 format. I like to capture sound from some DVDs when the movie contains music which is not included on the soundtrack, or when the soundtrack version is different than the one included in the movie.

There are multiple ways to do this, I've outlined the method I use most often.

First things first

Since organization is necessary to maximize efficiency, and since many of the tools don't have their own installers, we need to create two folders: "DVD Tools" and "Files". Make sure that the "Files" folder resides on a drive with at least 1GB of space. In the "DVD Tools" folder, make several subfolders named: "VirtualDub-MPEG-2", "BeSweet", and "LAME".

Tools you will need (All Free)

• DVD Decrypter
  Download and run the automatic installation.
• VirtualDub-MPEG2
  Download and unzip the contents of VirtualDub-MPEG2.zip to the "VirtualDub-MPEG-2" subdirectory.
• BeSweet
  Download BeSweet and BeSweetGUI and unzip both to the "BeSweet" subfolder.
• LAME Encoder
  Download and unzip to the "LAME" subfolder. Also, unzip only lame_enc.dll to the "BeSweet" folder, and answer "Yes" to the "File Overwrite" prompt.

Let's Get Started

1. Decrypt DVD
   • Put your DVD in the DVD drive and run DVD Decrypter.
   • Select your DVD drive in the "Source Drive" drop down box.
   
   • Specify your "Files" folder as the destination.
   • Open the Mode menu, and select IFO from it.
   • Now, you will have to select the PGC file on which your sound is on. This is somewhat of a guessing game, although the files are listed in order, and their duration is specified. For example, in the screenshot I have two 1-hour long PGC files. On the DVD there are 2 1-hour long episodes of BofB, thus PGC1 is the first episode, and PGC2 is the second episode.
   • If you know which chapter your sound is located in, deselect all other chapters to make the decryption process quicker. If you have no clue as to where the sound is located, leave all the chapters checked.
   
   • Now select the "Stream Processing" tab, and select the "Enable Stream Processing" box.
   • These are all the "parts" of the selected file, including different sound tracks and subtitles.
   • Deselect the lines with "Video" and "Subtitle" and "Audio - DTS".
   • Now, you will need to decide which track you want your sound from. The language of each track is specified, and also how many channels of sound they contain. I selected the AC-3/6ch/English, thus I deselected the other AC-3 lines.
   • Select "Demux" and press the big DVD -> Hard Drive button to start the process of decryption.
2. Convert Sound
   • We have now extracted the audio from the DVD. Go to the "BeSweet" subdirectory, and run the BeSweetGUI.exe file.
   • When BeSweet opens, click the folder icon by "BeSweet.exe". In the new window browse to the BeSweet subfolder, and double-click on the BeSweet.exe file in the right-hand list.
   
   • Click on the VOB/AC3/LST line, and browse to the "Files" folder. From the drop down menu on the right that says .VOB, select .AC3. You should see a file in the list now. Double click on it.
   • Click on the WAV/MPX line below, and browse to the "Files" folder, and enter the file name for how you would like to name your sound.
   • Click on the Lame.exe line, and browse to the "DVD Tools\LAME" folder, and double click on the Lame.exe file in the right-hand list.
   • Leave the WAV line blank for now. Click on the mp3 line below, and browse to the "Files" folder and enter the file name for how you'd like your sound to be named.
   • Push the OK button. Now, in the main window. in the SSRC section, check the "Downconvert Sample Rate", output is "MP3."
   • Now, we need to determine when the sound you would like to convert starts and ends. Watch your DVD in a DVD player, and note the start and end time. Convert it to seconds (multiply minutes by 60, hours by 3600, and add the remaining seconds). So 1hr 3min 5sec is 1*3600+3*60+5=3785 seconds. Check the box by "Partial Encoding" and enter the start and end times in seconds.
   • Click the "Lame 1" button on the right. Check the Mode box, and select "Joint Stereo."
   • Check the Alt Preset and select either "standard" for mp3's averaging 192kbps, or "extreme" for mp3's averaging 256kbps.
   • Click the GREEN "AC3 to MP3" button. Conversion time depends on the length of the sound.
   • When the black window closes, open your "Files" subfolder, and test out your .mp3 file. If it works without any clicks, you have just completed the conversion process. Congratulations!!!

1. Download and install Audacity
2. Run Audacity and go to File->Preferences and select the "File Formats" tab. From the "Uncompressed Export Format" drop-down box select "WAV (Microsoft 16-bit PCM)" and push OK.
3. Go back to BeSweet and click on the "Be Sweet" button and in the "Lame" drop-down box select Wave-Stereo.
4. Click the AC3 to WAV button.
5. Go back to Audacity and File -> Open and browse to the "Files" folder and open the WAV file, not the MP3.
6. Highlight the first few milliseconds and push the "Delete" button on your keyboard.
7. Go to File->Export as WAV... and save it in the "Files" folder by the name of -"fixed.wav"
8. Go back to "BeSweet and click the "Lame 1" button. Push the Folder icon by the WAV box, and browse to the "Files" folder and select "fixed.wav"
9. Push the WAV to MP3 button, and test out the new mp3.