fixing a ifo

When there is this VTS where every I navigate to it (using ifoedit to view the DVD), it gives me "an illegal DVD navigation was encountered". How do I fix this problem? Here's a copy/paste of VMGM_MAT/FIRST_PLAY -------- PGC (program chain): [00000002] Number of Programs 0 [00] [00000003] Number of Cells 0 [00] [00000004] Playback time (BCD) 192 [000000c0] Playback time (hh:mm:ss.frame) 00:00:00.00 / 30 fps [00000008] Prohibited user operations 0 [00000000] [0000000c] Audio stream 1 status 0 [0000] [0000000e] Audio stream 2 status 0 [0000] [00000010] Audio stream 3 status 0 [0000] [00000012] Audio stream 4 status 0 [0000] [00000014] Audio stream 5 status 0 [0000] [00000016] Audio stream 6 status 0 [0000] [00000018] Audio stream 7 status 0 [0000] [0000001a] Audio stream 8 status 0 [0000] [0000001c] Sub-picture stream 1 status 0 [00000000] [00000020] Sub-picture stream 2 status 0 [00000000] [00000024] Sub-picture stream 3 status 0 [00000000] [00000028] Sub-picture stream 4 status 0 [00000000] [0000002c] Sub-picture stream 5 status 0 [00000000] [00000030] Sub-picture stream 6 status 0 [00000000] [00000034] Sub-picture stream 7 status 0 [00000000] [00000038] Sub-picture stream 8 status 0 [00000000] [0000003c] Sub-picture stream 9 status 0 [00000000] [00000040] Sub-picture stream 10 status 0 [00000000] [00000044] Sub-picture stream 11 status 0 [00000000] [00000048] Sub-picture stream 12 status 0 [00000000] [0000004c] Sub-picture stream 13 status 0 [00000000] [00000050] Sub-picture stream 14 status 0 [00000000] [00000054] Sub-picture stream 15 status 0 [00000000] [00000058] Sub-picture stream 16 status 0 [00000000] [0000005c] Sub-picture stream 17 status 0 [00000000] [00000060] Sub-picture stream 18 status 0 [00000000] [00000064] Sub-picture stream 19 status 0 [00000000] [00000068] Sub-picture stream 20 status 0 [00000000] [0000006c] Sub-picture stream 21 status 0 [00000000] [00000070] Sub-picture stream 22 status 0 [00000000] [00000074] Sub-picture stream 23 status 0 [00000000] [00000078] Sub-picture stream 24 status 0 [00000000] [0000007c] Sub-picture stream 25 status 0 [00000000] [00000080] Sub-picture stream 26 status 0 [00000000] [00000084] Sub-picture stream 27 status 0 [00000000] [00000088] Sub-picture stream 28 status 0 [00000000] [0000008c] Sub-picture stream 29 status 0 [00000000] [00000090] Sub-picture stream 30 status 0 [00000000] [00000094] Sub-picture stream 31 status 0 [00000000] [00000098] Sub-picture stream 32 status 0 [00000000] [0000009c] Next PGC number 0 [0000] [0000009e] Previous PGC number 0 [0000] [000000a0] Go Up PGC number 0 [0000] [000000a2] Still time in seconds 0 [00] [000000a3] PG Playback mode 0 [00] PG Playback mode = sequential [000000a5] Color 0 Y Cr CB 0 0 0 [00 00 00 ] [000000a9] Color 1 Y Cr CB 0 0 0 [00 00 00 ] [000000ad] Color 2 Y Cr CB 0 0 0 [00 00 00 ] [000000b1] Color 3 Y Cr CB 0 0 0 [00 00 00 ] [000000b5] Color 4 Y Cr CB 0 0 0 [00 00 00 ] [000000b9] Color 5 Y Cr CB 0 0 0 [00 00 00 ] [000000bd] Color 6 Y Cr CB 0 0 0 [00 00 00 ] [000000c1] Color 7 Y Cr CB 0 0 0 [00 00 00 ] [000000c5] Color 8 Y Cr CB 0 0 0 [00 00 00 ] [000000c9] Color 9 Y Cr CB 0 0 0 [00 00 00 ] [000000cd] Color 10 Y Cr CB 0 0 0 [00 00 00 ] [000000d1] Color 11 Y Cr CB 0 0 0 [00 00 00 ] [000000d5] Color 12 Y Cr CB 0 0 0 [00 00 00 ] [000000d9] Color 13 Y Cr CB 0 0 0 [00 00 00 ] [000000dd] Color 14 Y Cr CB 0 0 0 [00 00 00 ] [000000e1] Color 15 Y Cr CB 0 0 0 [00 00 00 ] [000000e4] PGC Command Table start byte 236 [00ec] [000000e6] PGC Program Map start byte 0 [0000] [000000e8] Cell Playback Information Table start byte 0 [0000] [000000ea] Cell Position Information Table start byte 0 [0000] PGC Command Table: [000000ec] Number of Pre Commands 3 [0003] [000000ee] Number of Post Commands 0 [0000] [000000f0] Number of Cell Commands 0 [0000] [000000f2] Size of Command table in bytes 31 [001f] [000000f4] 1.Pre Command Set GPreg<6> mov (set-val)<1000> [71 00 00 06 03 e8 00 00 ] [000000fc] 2.Pre Command Set GPreg<7> mov (set-val)<1> [71 00 00 07 00 01 00 00 ] [00000104] 3.Pre Command (JumpSS VTSM) Jump to TitleSet(vts): 1, Title(ttn): 1, root-menu [30 06 00 01 01 83 00 00 ] There is no PGC Program Map There is no Cell Playback Information Table There is no Cell Position Information Table ------------------ Is there anything else I need to provide? Thanks

This error happends when PgcEdit is reading the VTS file and can't recognize it as valid. The VTS file must begin with "DVDVIDEO-VTS". If it is not the case, this means that the file has been damaged with a buggy program. If a VTS Sector pointer is 0 when it should be non zero, some programs are trashing the start of the file. IfoEdit has a bug in this situation: the start of the IFO file is overwritted by another table. However, I encountered this problem only with the VIDEO_TS.IFO file. Try to open VTS_08_0.IFO in IfoEdit and see if the video identifier (first line of the VTSI_MAT table) is "DVDVIDEO-VTS".

hmm opening vts8.ifo in ifoedit, it is empty. Is there a way to use say vts7.ifo and edit that to make it usable for vts8?

If it is the last VTS, you may try to get rid of it.[list=1][*]Load "VIDEO_TS.IFO" in IfoEdit.[*]In VMG_PTT_SRPT, locate the Titles belonging to Title set number (VTS#) 8.[*]Note thoses Title numbers.[*]If those titles are at the end of the list, decrement the Number of Title play Maps (at the beginning of the table) to the number of titles just before the first one that belong to VTS 8. If they are not at the end of the list, you're not lucky :([*]In VMGM_MAT, at offset [0000003e], change VMG Number of Title Sets to 7[*]In VMG_VTS_ATRT, at the beginning of the table, change the Number of Video Title Sets to 7[*]Save, but don't quit.[*]Remove all files VTS_08_*.*[*]Go back to IfoEdit, and Get VTS Sectors. Quit.[*]Load the DVD in PgcEdit, and save it. (This will rebuild the VMG_PTT_SRPT end of table pointer for you)[*]Locate all references in the First-Play PGC and the VMGM menus to VTS 8, and to any Title number you noted in step 3. You should disable them... but that's beyond what I can explain here.[/list=1] Should work.

there are 12 VTSes :