Kirupa I would reccommend using smart ripper and dvd2avi. Use smart ripper to rib the VOB files of the audio you want to listen to. Sve it to your HDD, and look at the .txt file that smart ripper creates. It should look like this…
Name: NOIR_1
Size (B): 960102400
Frames: 34521
Title: 1
Angle: 1
MinDataRate (B/s): 409600
AvgDataRate (B/s): 771021
MaxDataRate (B/s): 1352953
Compression: MPEG-2
TV system: NTSC
Aspect ratio: 4:3
TV system: not specified
Display mode: 720x480
Resolution: no
Letterboxed: Camera
Mode:
[COLOR=red]
Stream[001] X=[[0xE0] Video NTSC 720x480]
Stream[002] X=[[0x80] Audio English AC3(6Ch) 48kHz ]
Stream[003] X=[[0x81] Audio Japanese AC3(6Ch) 48kHz ]
Stream[004] X=[[0x20] Subtitle English ]
Stream[005] X=[[0x21] Subtitle English ]
Stream[006] X=[[0x??] Others]
[/COLOR]
Chap#=Frame#
Chapter2=0
Chapter3=15816
Chap#=@LBA
Chapter2=0
Chapter3=220254
Chap#=Frame# Name
2=0 Chapter2
3=15816 Chapter3
Chap#=Second
Chapter2=0
Chapter3=632
Chap#=Time
Chapter2=00:00:00.00
Chapter3=00:10:32.64
C:\Vobs\Noir1\vts_02_1.vob
001: Program Chain[1]->Angle[1]->Chapter[2]->Cell[001] VobID[1].CellID[2] [#0] [@0]
002: Program Chain[1]->Angle[1]->Chapter[3]->Cell[001] VobID[1].CellID[3] [#15816] [@220254]
The only info in this file you need is the stream info, which I highlighted.
Look to see which stream you want to rip, and open DVD2AVI. Open the VOB file in DVD2AVI and pull the audio menu down and pick dolby digital > demux (You could choose demux all tracks but there is no reason to, only demux the streams you want) Choose what stream you want to demux from the audio menu (stream one of above would demux the english audio) Hit F4 to save project, name it whatever you like. This will leave you with a .ac3 audio file, and a .d2v file, you can delete the .d2v file, we are only interested in this file if you are doing something with the video. Then its very easy to use a program called besweet to transcode the file to CD audio quality sound. You can D/L Besweet and the GUI from http://www.doom9.org like other have mentioned.
(This is where Smartripper and DVD2AVI come from as well.) I have had excellent results with BeSweet, plus it will downmix directly to a .wav file. This is the way to go if you are buring CDs. MP3 compression is a lossy compression, even at good bitrates. While most of the time you can’t hear the difference, downmixing directly to a .wav does not lose any audio in the process. =) If you have any questions, let me know I use all these programs quite a bit.
Cheers!
-Niann