[dvd::rip] tcprobe and dvd::rip inconsistency

Hello all,

First post, because I'm truly stumped.

I am trying to rip a DVD that has 1 title and 36 chapters. I know this because
(a) That's what VLC says
(b) That's what lsdvd says:

libdvdread: Using libdvdcss version 1.2.10 for DVD access
Please send bug report - no VTS_TMAPT ??
Disc Title: ET_IN_THE_20_CENT_PT_2_DVD_2
Title: 01, Length: 00:00:40.043 Chapters: 36, Cells: 01, Audio streams: 01, Subpictures: 01

Longest track: 01

(c) that's what tcprobe says:

libdvdread: Using libdvdcss version 1.2.10 for DVD access
[tcprobe] DVD image/device
libdvdread: Using libdvdcss version 1.2.10 for DVD access
Please send bug report - no VTS_TMAPT ??
(dvd_reader.c) mpeg2 ntsc 4:3 U0 720x480 video
(dvd_reader.c) ac3 drc 48kHz 2Ch
(dvd_reader.c) -- Unspecified Subs --
Please send bug report - no VTS_TMAPT ??
(dvd_reader.c) DVD title 1/1: 36 chapter(s), 1 angle(s), title set 1
(dvd_reader.c) title playback time: 00:00:40.11 41 sec
(dvd_reader.c) [Chapter 01] 00:00:00.000 , block from 7651 to 25344
(dvd_reader.c) [Chapter 02] 00:00:00.000 , block from 16777219 to 0
(dvd_reader.c) [Chapter 03] 00:00:00.000 , block from 289 to -721420288
(dvd_reader.c) [Chapter 04] 00:00:00.000 , block from 0 to -2147483648
(dvd_reader.c) [Chapter 05] 00:00:00.000 , block from 309634 to 396749
(dvd_reader.c) [Chapter 06] 00:00:00.000 , block from 16777222 to 67108870
(dvd_reader.c) [Chapter 07] 00:00:08.000 , block from 289 to -717803520
(dvd_reader.c) [Chapter 08] 00:05:08.000 , block from 0 to -2147483648
(dvd_reader.c) [Chapter 09] 00:15:18.000 , block from 0 to 0
(dvd_reader.c) [Chapter 10] 00:23:31.000 , block from 0 to 0
(dvd_reader.c) [Chapter 11] 00:23:31.000 , block from 0 to 0
(dvd_reader.c) [Chapter 12] 00:23:39.000 , block from 0 to 0
(dvd_reader.c) [Chapter 13] 00:28:59.000 , block from 0 to 0
(dvd_reader.c) [Chapter 14] 00:34:21.000 , block from 0 to 0
(dvd_reader.c) [Chapter 15] 00:42:01.000 , block from 0 to 2649584
(dvd_reader.c) [Chapter 16] 00:48:48.000 , block from 5198171 to 8958778
(dvd_reader.c) [Chapter 17] 00:48:48.000 , block from 23724274 to 35029040
(dvd_reader.c) [Chapter 18] 00:48:56.000 , block from 0 to 67305985
(dvd_reader.c) [Chapter 19] 00:53:49.000 , block from 33 to 100705029
(dvd_reader.c) [Chapter 20] 01:00:32.000 , block from 100712480 to 0
(dvd_reader.c) [Chapter 21] 01:07:02.000 , block from 1494915 to 1496517
(dvd_reader.c) [Chapter 22] 01:07:02.000 , block from 1496518 to 1599876
(dvd_reader.c) [Chapter 23] 01:07:10.000 , block from 1599877 to 1673001
(dvd_reader.c) [Chapter 24] 01:14:07.000 , block from 1673002 to 1800413
(dvd_reader.c) [Chapter 25] 01:28:47.000 , block from 1800414 to 1857987
(dvd_reader.c) [Chapter 26] 01:36:34.000 , block from 16777227 to 67108875
(dvd_reader.c) [Chapter 27] 01:36:34.000 , block from 33 to 543
(dvd_reader.c) [Chapter 28] 01:36:42.000 , block from -2083580416 to 0
(dvd_reader.c) [Chapter 29] 01:45:18.000 , block from 35030320 to -2073487360
(dvd_reader.c) [Chapter 30] 01:51:23.000 , block from -2013239954 to 0
(dvd_reader.c) [Chapter 31] 02:01:59.000 , block from 0 to 0
(dvd_reader.c) [Chapter 32] 02:01:59.000 , block from 0 to 0
(dvd_reader.c) [Chapter 33] 02:02:07.000 , block from 0 to 0
(dvd_reader.c) [Chapter 34] 02:12:22.000 , block from 0 to 0
(dvd_reader.c) [Chapter 35] 02:21:56.000 , block from 0 to 0
(dvd_reader.c) [Chapter 36] 02:28:17.000 , block from 0 to 0
[tcprobe] summary for /dev/sr0, (*) = not default, 0 = not detected
import frame size: -g 720x480 [720x576] (*)
     aspect ratio: 4:3 (*)
       frame rate: -f 23.976 [25.000] frc=1 (*)
      audio track: -a 0 [0] -e 48000,16,2 [48000,16,2] -n 0x2000 [0x2000]
[tcprobe] V: 984 frames, 41 sec @ 23.976 fps
[tcprobe] A: 0.64 MB @ 128 kbps
[tcprobe] CD: 650 MB | V: 649.4 MB @ 132859.1 kbps
[tcprobe] CD: 700 MB | V: 699.4 MB @ 143089.1 kbps
[tcprobe] CD: 1300 MB | V: 1299.4 MB @ 265849.2 kbps
[tcprobe] CD: 1400 MB | V: 1399.4 MB @ 286309.2 kbps

Even the internal execflow command that I copied from the Debug screen of dvd::rip and pasted into my console acknowledges that there are 36 chapters.

But when I hit "Read DVD Table of Contents" in dvd::rip and then select "Selection" under "Specify Chapter Mode," I see only one chapter that is equal in length to the entire title

I tried AcidRip and I get the same results as dvd::rip -- 1 title, 1 chapter. Same lengths.

Clearly, then, this isn't a dvd::rip bug, but I just have no clue what's going on here, and figure someone can give me a hint.

What I want to do eventually is to group the chapters into several AVI files (like chapters 1 through 6 in file1.avi, chapters 7 through 20 in file2.avi, etc.) but that's for another day. Even if that's impossible -- which I'm beginning to suspect it is -- I can always use another tool to merge existing AVIs, but the main thing is getting dvd:rip to recognize the chapters in the first place.

Any ideas, folks?

Thanks in advance,
Vadim.