This is from VIDEO_TS.IFO Number of Title Play Maps: 7 (VMG_PTT_SRPT) Title 1: VTS_1, TTN_1 (Angles: 1) (Chapters: 13) (Start Sector 641) Title 2: VTS_1, TTN_2 (Angles: 1) (Chapters: 1) (Start Sector 641) Title 3: VTS_1, TTN_3 (Angles: 1) (Chapters: 13) (Start Sector 641) Title 4: VTS_1, TTN_4 (Angles: 1) (Chapters: 1) (Start Sector 641) Title 5: VTS_1, TTN_5 (Angles: 1) (Chapters: 1) (Start Sector 641) Title 6: VTS_1, TTN_6 (Angles: 1) (Chapters: 1) (Start Sector 641) Title 7: VTS_1, TTN_7 (Angles: 1) (Chapters: 2) (Start Sector 641) -------------------------------------------------------------------- Here are the program chains from VTS_01_0.IFO PGC_1 (program chain): [Title(TTN): 1] [01:50:06.14 / 30 fps] (Programs: 13) (Cells: 13) (uses VOB-IDs: 3) PGC_3 (program chain): [Title(TTN): 3] [01:50:11.17 / 30 fps] (Programs: 13) (Cells: 14) (uses VOB-IDs: 2,1) --------------------------------------------------------------------