Problem ripping audio

[GS3]

I gave an old home video tape to a friend who transferred it to DVD for me and the DVD works fine, both audio and video, but when I try to rip it there seems to be some problem with the audio. I have already encoded the video with DivX and now I only need to extract the audio and add it but I cannot do it.

The audio in the VOBs seems to be raw PCM 0xA0. I have 13 VOBs of about 240 MB (6 min) each, total about 70 minutes of video.

Each VOB opens with Power DVD correctly, including audio but DVD2AVI does not create a separate audio file as it usually does.

Besweet can extract the audio from the first VOB but not the others. I suspect the first VOB has some headers required for extracting the successive VOBs.

It seems there may be a problem with the IFO file?

How can I extract the full length audio from the VOB chain?

File Name Size MB
VTS_01_0.IFO 0.1
VTS_01_VOBID_01_1.VOB 292.9
VTS_01_VOBID_02_1.VOB 234.4
VTS_01_VOBID_03_1.VOB 234.4
VTS_01_VOBID_04_1.VOB 234.4
VTS_01_VOBID_05_1.VOB 85.9
VTS_01_VOBID_06_1.VOB 203.0
VTS_01_VOBID_07_1.VOB 234.4
VTS_01_VOBID_08_1.VOB 234.4
VTS_01_VOBID_09_1.VOB 234.4
VTS_01_VOBID_10_1.VOB 172.4
VTS_01_VOBID_11_1.VOB 84.2
VTS_01_VOBID_12_1.VOB 234.4
VTS_01_VOBID_13_1.VOB 253.1

[GS3]

I used IFOEDIT to have a look but I do not know how to interpret the information. It seems to report two audio streams (PCM and MPEG)but I cannot get BESWEET to process any of them and POWERDVD only recognizes one.

In case it is of any use:

= = = = = = = = = = = = =

VTS overview:

Menu attributes:
Video: MPEG-1 720x480 (NTSC) (NTSC 525/60) (4:3) (pan-scan & letterboxed)

Title Set (Movie) attributes:
Video: MPEG-2 720x576 (PAL) (PAL 625/50) (4:3) (not specified perm.display)
Audio 1: Not Specified (Linear PCM) 2ch 48Kbps 16bps (ID: 0xa0)
Audio 2: Not Specified (Mpeg-1 ) 2ch 48Kbps 16bps (ID: 0xc0)

PGC_1 (program chain): [Title(TTN): 1] [00:06:19.24 / 25 fps] (Programs: 1) (Cells: 1) (uses VOB-IDs: 1)
[Ch 01] [Pg 01] [Cell 01] [V/C Id: 1/ 1] : time: 00:06:19.24 / 25 fps [Pos: 00:06:19.24] [Frames: 9499]

PGC_2 (program chain): [Title(TTN): 2] [00:06:20.16 / 25 fps] (Programs: 1) (Cells: 1) (uses VOB-IDs: 2)
[Ch 01] [Pg 01] [Cell 01] [V/C Id: 2/ 1] : time: 00:06:20.16 / 25 fps [Pos: 00:06:20.16] [Frames: 9516]

PGC_3 (program chain): [Title(TTN): 3] [00:06:20.16 / 25 fps] (Programs: 1) (Cells: 1) (uses VOB-IDs: 3)
[Ch 01] [Pg 01] [Cell 01] [V/C Id: 3/ 1] : time: 00:06:20.16 / 25 fps [Pos: 00:06:20.16] [Frames: 9516]

PGC_4 (program chain): [Title(TTN): 4] [00:06:20.16 / 25 fps] (Programs: 1) (Cells: 1) (uses VOB-IDs: 4)
[Ch 01] [Pg 01] [Cell 01] [V/C Id: 4/ 1] : time: 00:06:20.16 / 25 fps [Pos: 00:06:20.16] [Frames: 9516]

PGC_5 (program chain): [Title(TTN): 5] [00:02:19.15 / 25 fps] (Programs: 1) (Cells: 1) (uses VOB-IDs: 5)
[Ch 01] [Pg 01] [Cell 01] [V/C Id: 5/ 1] : time: 00:02:19.15 / 25 fps [Pos: 00:02:19.15] [Frames: 3490]

PGC_6 (program chain): [Title(TTN): 6] [00:04:00.20 / 25 fps] (Programs: 1) (Cells: 1) (uses VOB-IDs: 6)
[Ch 01] [Pg 01] [Cell 01] [V/C Id: 6/ 1] : time: 00:04:00.20 / 25 fps [Pos: 00:04:00.20] [Frames: 6020]

PGC_7 (program chain): [Title(TTN): 7] [00:06:20.16 / 25 fps] (Programs: 1) (Cells: 1) (uses VOB-IDs: 7)
[Ch 01] [Pg 01] [Cell 01] [V/C Id: 7/ 1] : time: 00:06:20.16 / 25 fps [Pos: 00:06:20.16] [Frames: 9516]

PGC_8 (program chain): [Title(TTN): 8] [00:06:20.16 / 25 fps] (Programs: 1) (Cells: 1) (uses VOB-IDs: 8)
[Ch 01] [Pg 01] [Cell 01] [V/C Id: 8/ 1] : time: 00:06:20.16 / 25 fps [Pos: 00:06:20.16] [Frames: 9516]

PGC_9 (program chain): [Title(TTN): 9] [00:06:20.16 / 25 fps] (Programs: 1) (Cells: 1) (uses VOB-IDs: 9)
[Ch 01] [Pg 01] [Cell 01] [V/C Id: 9/ 1] : time: 00:06:20.16 / 25 fps [Pos: 00:06:20.16] [Frames: 9516]

PGC_10 (program chain): [Title(TTN): 10] [00:04:40.06 / 25 fps] (Programs: 1) (Cells: 1) (uses VOB-IDs: 10)
[Ch 01] [Pg 01] [Cell 01] [V/C Id: 10/ 1] : time: 00:04:40.06 / 25 fps [Pos: 00:04:40.06] [Frames: 7006]

PGC_11 (program chain): [Title(TTN): 11] [00:01:40.04 / 25 fps] (Programs: 1) (Cells: 1) (uses VOB-IDs: 11)
[Ch 01] [Pg 01] [Cell 01] [V/C Id: 11/ 1] : time: 00:01:40.04 / 25 fps [Pos: 00:01:40.04] [Frames: 2504]

PGC_12 (program chain): [Title(TTN): 12] [00:06:20.16 / 25 fps] (Programs: 1) (Cells: 1) (uses VOB-IDs: 12)
[Ch 01] [Pg 01] [Cell 01] [V/C Id: 12/ 1] : time: 00:06:20.16 / 25 fps [Pos: 00:06:20.16] [Frames: 9516]

PGC_13 (program chain): [Title(TTN): 13] [00:05:28.06 / 25 fps] (Programs: 1) (Cells: 1) (uses VOB-IDs: 13)
[Ch 01] [Pg 01] [Cell 01] [V/C Id: 13/ 1] : time: 00:05:28.06 / 25 fps [Pos: 00:05:28.06] [Frames: 8206]


[00000000] VTS Identifier DVDVIDEO-VTS
[0000000c] Last Sector of VTS 1398967 [001558b7]
[0000001c] Last Sector of VTSI 46 [0000002e]
[00000021] Specification version number v1.1 [11]
[00000022] VTS Category 0 [00000000]
[00000080] End byte of VTSI_MAT 2047 [000007ff]
[000000c0] Start sector of VTSM_VOBS 0 [00000000]
[000000c4] Start sector of VTSTT_VOBS 47 [0000002f]
[000000c8] Start offset of VTS_PTT_SRPT 1 [00000001]
[000000cc] Start offset of VTS_PGCIT 2 [00000002]
[000000d0] Start offset of VTSM_PGCI_UT 4 [00000004]
[000000d4] Start offset of VTS_TMAPT 20 [00000014]
[000000d8] Start offset of VTSM_C_ADT 0 [00000000]
[000000dc] Start offset of VTSM_VOBU_ADMAP 0 [00000000]
[000000e0] Start offset of VTS_C_ADT 29 [0000001d]
[000000e4] Start offset of VTS_VOBU_ADMAP 30 [0000001e]

[00000100] Video attributes of VTSM_VOBS 0 [0000]
Video attribute details:
Video compression MPEG-1
TV system NTSC 525/60
Aspect ratio 4:3
Automatic Display Mode pan-scan & letterboxed
CC for Line21-1 (NTSC only) no data
CC for Line21-2 (NTSC only) no data
Bit Rate VBR
Source Resolution 720x480 (NTSC)
Letterboxed top&bottom cropped no
Mode Camera
[00000103] Number of audio streams in VTSM_VOBS 0 [00]
[00000104] Audio_1: VTSM audio attributes 0 0 0 0 0 0 0 0 [00 00 00 00 00 00 00 00 ]
[0000010c] Audio_2: VTSM audio attributes 0 0 0 0 0 0 0 0 [00 00 00 00 00 00 00 00 ]
[00000114] Audio_3: VTSM audio attributes 0 0 0 0 0 0 0 0 [00 00 00 00 00 00 00 00 ]
[0000011c] Audio_4: VTSM audio attributes 0 0 0 0 0 0 0 0 [00 00 00 00 00 00 00 00 ]
[00000124] Audio_5: VTSM audio attributes 0 0 0 0 0 0 0 0 [00 00 00 00 00 00 00 00 ]
[0000012c] Audio_6: VTSM audio attributes 0 0 0 0 0 0 0 0 [00 00 00 00 00 00 00 00 ]
[00000134] Audio_7: VTSM audio attributes 0 0 0 0 0 0 0 0 [00 00 00 00 00 00 00 00 ]
[0000013c] Audio_8: VTSM audio attributes 0 0 0 0 0 0 0 0 [00 00 00 00 00 00 00 00 ]
[00000155] Number of Sub-picture streams in VTSM 0 [00]
[00000156] Sub-pic_1: VTSM Sub-picture stream attributes 0 0 0 0 0 0 [00 00 00 00 00 00 ]

[00000200] Video attributes of VTSTT_VOBS 21248 [5300]
Video attribute details:
Video compression MPEG-2
TV system PAL 625/50
Aspect ratio 4:3
Automatic Display Mode not specified
CC for Line21-1 (NTSC only) no data
CC for Line21-2 (NTSC only) no data
Bit Rate VBR
Source Resolution 720x576 (PAL)
Letterboxed top&bottom cropped no
Mode Camera
[00000203] Number of audio streams in VTSTT_VOBS 2 [02]
[00000204] Aud_1: audio attributes 132 1 0 0 0 0 0 0 [84 01 00 00 00 00 00 00 ]
Audio attribute details:
Application mode unspecified
Language type present
Multichannel extension not present
Coding mode LPCM
Channels 2
Sample Rate 48Kbps
Quantization/DRC 16bps
Language Not Specified
Language extension [00]
Code extension (Audio Type) unspecified
[0000020c] Aud_2: audio attributes 68 1 0 0 0 0 0 0 [44 01 00 00 00 00 00 00 ]
Audio attribute details:
Application mode unspecified
Language type present
Multichannel extension not present
Coding mode Mpeg-1
Channels 2
Sample Rate 48Kbps
Quantization/DRC 16bps
Language Not Specified
Language extension [00]
Code extension (Audio Type) unspecified
[00000214] Aud_3: audio attributes 0 0 0 0 0 0 0 0 [00 00 00 00 00 00 00 00 ]
[0000021c] Aud_4: audio attributes 0 0 0 0 0 0 0 0 [00 00 00 00 00 00 00 00 ]
[00000224] Aud_5: audio attributes 0 0 0 0 0 0 0 0 [00 00 00 00 00 00 00 00 ]
[0000022c] Aud_6: audio attributes 0 0 0 0 0 0 0 0 [00 00 00 00 00 00 00 00 ]
[00000234] Aud_7: audio attributes 0 0 0 0 0 0 0 0 [00 00 00 00 00 00 00 00 ]
[0000023c] Aud_8: audio attributes 0 0 0 0 0 0 0 0 [00 00 00 00 00 00 00 00 ]

[violao]

Have you tried PgcDemux or vStrip?

[GS3]

I have not tried those two specifically but I have tried several others, including Besweet, and all fail to extract the audio. I do not want to go installing programs just to try to solve this case.

[Guest]

DVD2AVI/DGIndex cannot currently demux LPCM; they can decode it to WAV, however.

[GS3]

Originally posted by neuron2
DVD2AVI/DGIndex cannot currently demux LPCM; they can decode it to WAV, however. I tried using DVD2AVI to decode to WAV but it can only decode 3 out of the 13 files. What can be the problem or difference with the other 10? The player plays them just fine.