Strange IFO

This is a strange Ifo file.
Main movie is composed by 95 cells.
The first chapter is composed by 79 cells.
The first 23 cells appear not used.
Play of main movie start at cell number 24 (with Pgcedit).
With this strange structure DVDShrink e Nero Recode don’t permit a low compression ratio (74% max)
and in reauthor/remake mode audio tracks have double dimension regarding “Full disc” mode.
clone dvd it seems to work correctly (61% quality).
Have any idea??
Thanks.

VTS overview:		
		
Menu attributes:		
  Video: MPEG-2 720x576 (PAL) (PAL 625/50) (16:9) (pan-scan)		
  Audio 1:      Not Specified        (Dolby AC-3) 6ch 48Kbps DRC      		
  SubPicture 1: Not Specified        (2-bit rle )		
		
Title Set (Movie) attributes:		
  Video: MPEG-2 720x576 (PAL) (PAL 625/50) (16:9) (letterboxed)		
  Audio 1:      Italiano (Italian)   (Dolby AC-3) 6ch 48Kbps DRC normal (ID: 0x80)		
  Audio 2:      Italiano (Italian)   (DTS       ) 5ch 48Kbps DRC normal (ID: 0x89)		
  Audio 3:      English              (Dolby AC-3) 6ch 48Kbps DRC normal (ID: 0x82)		
  SubPicture 1: Italiano (Italian)   (2-bit rle ) (ID: 0x20,0x21)		
  SubPicture 2: Italiano (Italian)   (2-bit rle ) (ID: 0x22,0x23)		
		
PGC_1 (program chain): [Title(TTN): 1] [01:50:35.17 / 25 fps] (Programs: 16) (Cells: 95) (uses VOB-IDs: 1,2)		
  [Ch 01] [Pg 01] [Cell 01] [V/C Id:  1/ 1]          : time: 00:00:00.00 / 25 fps     [Pos: 00:00:00.00] [Frames: 0] SP/ILVU/DISC/SA:[ no/ no/yes/yes]		
                  [Cell 02] [V/C Id:  1/ 2] Layer Br.: time: 00:00:00.00 / 25 fps     [Pos: 00:00:00.00] [Frames: 0] SP/ILVU/DISC/SA:[ no/ no/ no/yes]		
                  [Cell 03] [V/C Id:  1/ 3] Layer Br.: time: 00:00:00.00 / 25 fps     [Pos: 00:00:00.00] [Frames: 0] SP/ILVU/DISC/SA:[ no/ no/ no/yes]		
                  [Cell 04] [V/C Id:  1/ 4] Layer Br.: time: 00:00:00.00 / 25 fps     [Pos: 00:00:00.00] [Frames: 0] SP/ILVU/DISC/SA:[ no/ no/ no/yes]		
                  [Cell 05] [V/C Id:  1/ 5] Layer Br.: time: 00:00:00.00 / 25 fps     [Pos: 00:00:00.00] [Frames: 0] SP/ILVU/DISC/SA:[ no/ no/ no/yes]		
                  [Cell 06] [V/C Id:  1/ 6] Layer Br.: time: 00:00:00.07 / 25 fps     [Pos: 00:00:00.07] [Frames: 7] SP/ILVU/DISC/SA:[ no/ no/ no/yes]		
                  [Cell 07] [V/C Id:  1/ 7] Layer Br.: time: 00:00:00.05 / 25 fps     [Pos: 00:00:00.12] [Frames: 12] SP/ILVU/DISC/SA:[ no/ no/ no/yes]		
                  [Cell 08] [V/C Id:  1/ 8]          : time: 00:00:00.04 / 25 fps     [Pos: 00:00:00.16] [Frames: 16] SP/ILVU/DISC/SA:[yes/ no/ no/yes]		
                  [Cell 09] [V/C Id:  1/ 9]          : time: 00:00:00.07 / 25 fps     [Pos: 00:00:00.23] [Frames: 23] SP/ILVU/DISC/SA:[yes/ no/ no/yes]		
                  [Cell 10] [V/C Id:  1/10]          : time: 00:00:00.02 / 25 fps     [Pos: 00:00:01.00] [Frames: 25] SP/ILVU/DISC/SA:[yes/ no/ no/yes]		
                  [Cell 11] [V/C Id:  1/11] Layer Br.: time: 00:00:00.04 / 25 fps     [Pos: 00:00:01.04] [Frames: 29] SP/ILVU/DISC/SA:[ no/ no/ no/yes]		
                  [Cell 12] [V/C Id:  1/12] Layer Br.: time: 00:00:00.03 / 25 fps     [Pos: 00:00:01.07] [Frames: 32] SP/ILVU/DISC/SA:[ no/ no/ no/yes]		
                  [Cell 13] [V/C Id:  1/13] Layer Br.: time: 00:00:00.05 / 25 fps     [Pos: 00:00:01.12] [Frames: 37] SP/ILVU/DISC/SA:[ no/ no/ no/yes]		
                  [Cell 14] [V/C Id:  1/14]          : time: 00:00:00.05 / 25 fps     [Pos: 00:00:01.17] [Frames: 42] SP/ILVU/DISC/SA:[yes/ no/ no/yes]		
                  [Cell 15] [V/C Id:  1/15] Layer Br.: time: 00:00:00.02 / 25 fps     [Pos: 00:00:01.19] [Frames: 44] SP/ILVU/DISC/SA:[ no/ no/ no/yes]		
                  [Cell 16] [V/C Id:  1/16]          : time: 00:00:00.08 / 25 fps     [Pos: 00:00:02.02] [Frames: 52] SP/ILVU/DISC/SA:[yes/ no/ no/yes]		
                  [Cell 17] [V/C Id:  1/17]          : time: 00:00:00.07 / 25 fps     [Pos: 00:00:02.09] [Frames: 59] SP/ILVU/DISC/SA:[yes/ no/ no/yes]		
                  [Cell 18] [V/C Id:  1/18]          : time: 00:00:00.03 / 25 fps     [Pos: 00:00:02.12] [Frames: 62] SP/ILVU/DISC/SA:[yes/ no/ no/yes]		
                  [Cell 19] [V/C Id:  1/19] Layer Br.: time: 00:00:00.02 / 25 fps     [Pos: 00:00:02.14] [Frames: 64] SP/ILVU/DISC/SA:[ no/ no/ no/yes]		
                  [Cell 20] [V/C Id:  1/20]          : time: 00:00:00.01 / 25 fps     [Pos: 00:00:02.15] [Frames: 65] SP/ILVU/DISC/SA:[yes/ no/ no/yes]		
                  [Cell 21] [V/C Id:  1/21] Layer Br.: time: 00:00:00.04 / 25 fps     [Pos: 00:00:02.19] [Frames: 69] SP/ILVU/DISC/SA:[ no/ no/ no/yes]		
                  [Cell 22] [V/C Id:  1/22] Layer Br.: time: 00:00:00.05 / 25 fps     [Pos: 00:00:02.24] [Frames: 74] SP/ILVU/DISC/SA:[ no/ no/ no/yes]		
                  [Cell 23] [V/C Id:  1/23] Layer Br.: time: 00:00:00.07 / 25 fps     [Pos: 00:00:03.06] [Frames: 81] SP/ILVU/DISC/SA:[ no/ no/ no/yes]		
                  [Cell 24] [V/C Id:  1/24]          : time: 00:00:00.24 / 25 fps     [Pos: 00:00:04.05] [Frames: 105] SP/ILVU/DISC/SA:[yes/ no/ no/yes]		
                  [Cell 25] [V/C Id:  1/25]          : time: 00:00:08.12 / 25 fps     [Pos: 00:00:12.17] [Frames: 317] SP/ILVU/DISC/SA:[yes/ no/ no/yes]		
                  [Cell 26] [V/C Id:  1/26]          : time: 00:00:05.12 / 25 fps     [Pos: 00:00:18.04] [Frames: 454] SP/ILVU/DISC/SA:[yes/ no/ no/yes]		
                  [Cell 27] [V/C Id:  1/27]          : time: 00:00:05.13 / 25 fps     [Pos: 00:00:23.17] [Frames: 592] SP/ILVU/DISC/SA:[yes/ no/ no/yes]		
                  [Cell 28] [V/C Id:  1/28]          : time: 00:00:05.12 / 25 fps     [Pos: 00:00:29.04] [Frames: 729] SP/ILVU/DISC/SA:[yes/ no/ no/yes]		
                  [Cell 29] [V/C Id:  1/29]          : time: 00:00:05.13 / 25 fps     [Pos: 00:00:34.17] [Frames: 867] SP/ILVU/DISC/SA:[yes/ no/ no/yes]		
                  [Cell 30] [V/C Id:  1/30]          : time: 00:00:05.16 / 25 fps     [Pos: 00:00:40.08] [Frames: 1008] SP/ILVU/DISC/SA:[yes/ no/ no/yes]		
                  [Cell 31] [V/C Id:  1/31]          : time: 00:00:05.18 / 25 fps     [Pos: 00:00:46.01] [Frames: 1151] SP/ILVU/DISC/SA:[yes/ no/ no/yes]		
                  [Cell 32] [V/C Id:  1/32]          : time: 00:00:05.17 / 25 fps     [Pos: 00:00:51.18] [Frames: 1293] SP/ILVU/DISC/SA:[yes/ no/ no/yes]		
                  [Cell 33] [V/C Id:  1/33]          : time: 00:00:05.15 / 25 fps     [Pos: 00:00:57.08] [Frames: 1433] SP/ILVU/DISC/SA:[yes/ no/ no/yes]		
                  [Cell 34] [V/C Id:  1/34]          : time: 00:00:05.19 / 25 fps     [Pos: 00:01:03.02] [Frames: 1577] SP/ILVU/DISC/SA:[yes/ no/ no/yes]		
                  [Cell 35] [V/C Id:  1/35]          : time: 00:00:05.08 / 25 fps     [Pos: 00:01:08.10] [Frames: 1710] SP/ILVU/DISC/SA:[yes/ no/ no/yes]		
                  [Cell 36] [V/C Id:  1/36]          : time: 00:00:05.19 / 25 fps     [Pos: 00:01:14.04] [Frames: 1854] SP/ILVU/DISC/SA:[yes/ no/ no/yes]		
                  [Cell 37] [V/C Id:  1/37]          : time: 00:00:05.19 / 25 fps     [Pos: 00:01:19.23] [Frames: 1998] SP/ILVU/DISC/SA:[yes/ no/ no/yes]		
                  [Cell 38] [V/C Id:  1/38]          : time: 00:00:05.18 / 25 fps     [Pos: 00:01:25.16] [Frames: 2141] SP/ILVU/DISC/SA:[yes/ no/ no/yes]		
                  [Cell 39] [V/C Id:  1/39]          : time: 00:00:05.14 / 25 fps     [Pos: 00:01:31.05] [Frames: 2280] SP/ILVU/DISC/SA:[yes/ no/ no/yes]		
                  [Cell 40] [V/C Id:  1/40]          : time: 00:00:05.19 / 25 fps     [Pos: 00:01:36.24] [Frames: 2424] SP/ILVU/DISC/SA:[yes/ no/ no/yes]		
                  [Cell 41] [V/C Id:  1/41]          : time: 00:00:05.19 / 25 fps     [Pos: 00:01:42.18] [Frames: 2568] SP/ILVU/DISC/SA:[yes/ no/ no/yes]		
                  [Cell 42] [V/C Id:  1/42]          : time: 00:00:05.19 / 25 fps     [Pos: 00:01:48.12] [Frames: 2712] SP/ILVU/DISC/SA:[yes/ no/ no/yes]		
                  [Cell 43] [V/C Id:  1/43]          : time: 00:00:05.19 / 25 fps     [Pos: 00:01:54.06] [Frames: 2856] SP/ILVU/DISC/SA:[yes/ no/ no/yes]		
                  [Cell 44] [V/C Id:  1/44]          : time: 00:00:05.18 / 25 fps     [Pos: 00:01:59.24] [Frames: 2999] SP/ILVU/DISC/SA:[yes/ no/ no/yes]		
                  [Cell 45] [V/C Id:  1/45]          : time: 00:00:05.18 / 25 fps     [Pos: 00:02:05.17] [Frames: 3142] SP/ILVU/DISC/SA:[yes/ no/ no/yes]		
                  [Cell 46] [V/C Id:  1/46]          : time: 00:00:05.18 / 25 fps     [Pos: 00:02:11.10] [Frames: 3285] SP/ILVU/DISC/SA:[yes/ no/ no/yes]		
                  [Cell 47] [V/C Id:  1/47]          : time: 00:00:05.21 / 25 fps     [Pos: 00:02:17.06] [Frames: 3431] SP/ILVU/DISC/SA:[yes/ no/ no/yes]		
                  [Cell 48] [V/C Id:  1/48]          : time: 00:00:05.18 / 25 fps     [Pos: 00:02:22.24] [Frames: 3574] SP/ILVU/DISC/SA:[yes/ no/ no/yes]		
                  [Cell 49] [V/C Id:  1/49]          : time: 00:00:05.11 / 25 fps     [Pos: 00:02:28.10] [Frames: 3710] SP/ILVU/DISC/SA:[yes/ no/ no/yes]		
                  [Cell 50] [V/C Id:  1/50]          : time: 00:00:05.05 / 25 fps     [Pos: 00:02:33.15] [Frames: 3840] SP/ILVU/DISC/SA:[yes/ no/ no/yes]		
                  [Cell 51] [V/C Id:  1/51]          : time: 00:00:05.18 / 25 fps     [Pos: 00:02:39.08] [Frames: 3983] SP/ILVU/DISC/SA:[yes/ no/ no/yes]		
                  [Cell 52] [V/C Id:  1/52]          : time: 00:00:05.19 / 25 fps     [Pos: 00:02:45.02] [Frames: 4127] SP/ILVU/DISC/SA:[yes/ no/ no/yes]		
                  [Cell 53] [V/C Id:  1/53]          : time: 00:00:05.19 / 25 fps     [Pos: 00:02:50.21] [Frames: 4271] SP/ILVU/DISC/SA:[yes/ no/ no/yes]		
                  [Cell 54] [V/C Id:  1/54]          : time: 00:00:05.19 / 25 fps     [Pos: 00:02:56.15] [Frames: 4415] SP/ILVU/DISC/SA:[yes/ no/ no/yes]		
                  [Cell 55] [V/C Id:  1/55]          : time: 00:00:05.09 / 25 fps     [Pos: 00:03:01.24] [Frames: 4549] SP/ILVU/DISC/SA:[yes/ no/ no/yes]		
                  [Cell 56] [V/C Id:  1/56]          : time: 00:00:05.13 / 25 fps     [Pos: 00:03:07.12] [Frames: 4687] SP/ILVU/DISC/SA:[yes/ no/ no/yes]		
                  [Cell 57] [V/C Id:  1/57]          : time: 00:00:05.09 / 25 fps     [Pos: 00:03:12.21] [Frames: 4821] SP/ILVU/DISC/SA:[yes/ no/ no/yes]		
                  [Cell 58] [V/C Id:  1/58]          : time: 00:00:05.18 / 25 fps     [Pos: 00:03:18.14] [Frames: 4964] SP/ILVU/DISC/SA:[yes/ no/ no/yes]		
                  [Cell 59] [V/C Id:  1/59]          : time: 00:00:05.16 / 25 fps     [Pos: 00:03:24.05] [Frames: 5105] SP/ILVU/DISC/SA:[yes/ no/ no/yes]		
                  [Cell 60] [V/C Id:  1/60]          : time: 00:00:05.18 / 25 fps     [Pos: 00:03:29.23] [Frames: 5248] SP/ILVU/DISC/SA:[yes/ no/ no/yes]		
                  [Cell 61] [V/C Id:  1/61]          : time: 00:00:05.19 / 25 fps     [Pos: 00:03:35.17] [Frames: 5392] SP/ILVU/DISC/SA:[yes/ no/ no/yes]		
                  [Cell 62] [V/C Id:  1/62]          : time: 00:00:05.19 / 25 fps     [Pos: 00:03:41.11] [Frames: 5536] SP/ILVU/DISC/SA:[yes/ no/ no/yes]		
                  [Cell 63] [V/C Id:  1/63]          : time: 00:00:05.09 / 25 fps     [Pos: 00:03:46.20] [Frames: 5670] SP/ILVU/DISC/SA:[yes/ no/ no/yes]		
                  [Cell 64] [V/C Id:  1/64]          : time: 00:00:05.14 / 25 fps     [Pos: 00:03:52.09] [Frames: 5809] SP/ILVU/DISC/SA:[yes/ no/ no/yes]		
                  [Cell 65] [V/C Id:  1/65]          : time: 00:00:05.19 / 25 fps     [Pos: 00:03:58.03] [Frames: 5953] SP/ILVU/DISC/SA:[yes/ no/ no/yes]		
                  [Cell 66] [V/C Id:  1/66]          : time: 00:00:05.18 / 25 fps     [Pos: 00:04:03.21] [Frames: 6096] SP/ILVU/DISC/SA:[yes/ no/ no/yes]		
                  [Cell 67] [V/C Id:  1/67]          : time: 00:00:05.19 / 25 fps     [Pos: 00:04:09.15] [Frames: 6240] SP/ILVU/DISC/SA:[yes/ no/ no/yes]		
                  [Cell 68] [V/C Id:  1/68]          : time: 00:00:05.19 / 25 fps     [Pos: 00:04:15.09] [Frames: 6384] SP/ILVU/DISC/SA:[yes/ no/ no/yes]		
                  [Cell 69] [V/C Id:  1/69]          : time: 00:00:05.18 / 25 fps     [Pos: 00:04:21.02] [Frames: 6527] SP/ILVU/DISC/SA:[yes/ no/ no/yes]		
                  [Cell 70] [V/C Id:  1/70]          : time: 00:00:05.18 / 25 fps     [Pos: 00:04:26.20] [Frames: 6670] SP/ILVU/DISC/SA:[yes/ no/ no/yes]		
                  [Cell 71] [V/C Id:  1/71]          : time: 00:00:05.19 / 25 fps     [Pos: 00:04:32.14] [Frames: 6814] SP/ILVU/DISC/SA:[yes/ no/ no/yes]		
                  [Cell 72] [V/C Id:  1/72]          : time: 00:00:05.10 / 25 fps     [Pos: 00:04:37.24] [Frames: 6949] SP/ILVU/DISC/SA:[yes/ no/ no/yes]		
                  [Cell 73] [V/C Id:  1/73]          : time: 00:00:05.18 / 25 fps     [Pos: 00:04:43.17] [Frames: 7092] SP/ILVU/DISC/SA:[yes/ no/ no/yes]		
                  [Cell 74] [V/C Id:  1/74]          : time: 00:00:05.19 / 25 fps     [Pos: 00:04:49.11] [Frames: 7236] SP/ILVU/DISC/SA:[yes/ no/ no/yes]		
                  [Cell 75] [V/C Id:  1/75]          : time: 00:00:05.18 / 25 fps     [Pos: 00:04:55.04] [Frames: 7379] SP/ILVU/DISC/SA:[yes/ no/ no/yes]		
                  [Cell 76] [V/C Id:  1/76]          : time: 00:00:05.19 / 25 fps     [Pos: 00:05:00.23] [Frames: 7523] SP/ILVU/DISC/SA:[yes/ no/ no/yes]		
                  [Cell 77] [V/C Id:  1/77]          : time: 00:00:05.19 / 25 fps     [Pos: 00:05:06.17] [Frames: 7667] SP/ILVU/DISC/SA:[yes/ no/ no/yes]		
                  [Cell 78] [V/C Id:  1/78]          : time: 00:00:05.19 / 25 fps     [Pos: 00:05:12.11] [Frames: 7811] SP/ILVU/DISC/SA:[yes/ no/ no/yes]		
                  [Cell 79] [V/C Id:  1/79]          : time: 00:00:08.23 / 25 fps     [Pos: 00:05:21.09] [Frames: 8034] SP/ILVU/DISC/SA:[yes/ no/ no/yes]		
  [Ch 02] [Pg 02] [Cell 80] [V/C Id:  1/80]          : time: 00:04:15.10 / 25 fps     [Pos: 00:09:36.19] [Frames: 14419] SP/ILVU/DISC/SA:[yes/ no/ no/yes]		
  [Ch 03] [Pg 03] [Cell 81] [V/C Id:  1/81]          : time: 00:06:30.17 / 25 fps     [Pos: 00:16:07.11] [Frames: 24186] SP/ILVU/DISC/SA:[yes/ no/ no/yes]		
  [Ch 04] [Pg 04] [Cell 82] [V/C Id:  1/82]          : time: 00:04:47.17 / 25 fps     [Pos: 00:20:55.03] [Frames: 31378] SP/ILVU/DISC/SA:[yes/ no/ no/yes]		
  [Ch 05] [Pg 05] [Cell 83] [V/C Id:  1/83]          : time: 00:05:18.19 / 25 fps     [Pos: 00:26:13.22] [Frames: 39347] SP/ILVU/DISC/SA:[yes/ no/ no/yes]		
  [Ch 06] [Pg 06] [Cell 84] [V/C Id:  1/84]          : time: 00:08:19.15 / 25 fps     [Pos: 00:34:33.12] [Frames: 51837] SP/ILVU/DISC/SA:[yes/ no/ no/yes]		
  [Ch 07] [Pg 07] [Cell 85] [V/C Id:  1/85]          : time: 00:06:01.22 / 25 fps     [Pos: 00:40:35.09] [Frames: 60884] SP/ILVU/DISC/SA:[yes/ no/ no/yes]		
  [Ch 08] [Pg 08] [Cell 86] [V/C Id:  1/86]          : time: 00:06:32.16 / 25 fps     [Pos: 00:47:08.00] [Frames: 70700] SP/ILVU/DISC/SA:[yes/ no/ no/yes]		
  [Ch 09] [Pg 09] [Cell 87] [V/C Id:  1/87]          : time: 00:06:03.04 / 25 fps     [Pos: 00:53:11.04] [Frames: 79779] SP/ILVU/DISC/SA:[yes/ no/ no/yes]		
                  [Cell 88] [V/C Id:  2/ 1] Layer Br.: time: 00:00:10.11 / 25 fps     [Pos: 00:53:21.15] [Frames: 80040] SP/ILVU/DISC/SA:[ no/ no/yes/yes]		
  [Ch 10] [Pg 10] [Cell 89] [V/C Id:  2/ 2]          : time: 00:07:29.20 / 25 fps     [Pos: 01:00:51.10] [Frames: 91285] SP/ILVU/DISC/SA:[yes/ no/ no/yes]		
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