Log in

View Full Version : Entry point sector causes problems


pilotsnipes
14th January 2004, 01:54
Hi folks,

Many thanks for all the guides you people have helped me with over the past few weeks, I'm now a very proficient DVD ifoeditor!

However I'm coming to some difficulty with one issue. On some movies after you click play on the main menu, there's usually a lot of into credits that are part of the main movie pgc, and are NOT a separate cell etc.

eg

PGC_1 (program chain): [Title(TTN): 1] [02:43:35.07 / 25 fps] (Programs: 52) (Cells: 52)
[Ch 01] [Pg 01] [Cell 01] [V/C Id: 2/ 1] : time: 00:04:10.20 / 25 fps [Pos: 00:04:10.20] [Frames: 6270]
<snip>


There's an intro in this 4min 10sec cell that lasts about 1 min. It drives me mad trying to get rid of it.

I've tried double clicking the above cell, and runing through the cell until I come to the sector that I would like the movie to really start.

Lets say it's sector 1442. As shown at the top left of the preview window.

Now I go into

VTS_PGCITI -> PGC1 and then down to Cell 1


[000002b0] Cell_1: Cell type (Angle) 2 [02]
type normal
Block type normal
seamless playback linked in PCI: no
interleaved: no
STC discontinuity: yes
seamless angle linked in DSI: no
[000002b1] Cell_1: Cell restricted? 0 [00]
restricted: no
[000002b2] Cell_1: still time (seconds, 0xFF = Infinite) 0 [00]
[000002b3] Cell_1: command Nr (0 = no command) 0 [00]
[000002b4] Cell_1: playback time (BCD) 266336 [00041060]
playback time (hh:mm:ss.frame) 00:04:10.20 / 25 fps
[000002b8] Cell_1: entry point sector 0 [000000]
[000002bc] Cell_1: first ILVU VOBU end sector 0 [00000000]
[000002c0] Cell_1: start sector of last VOBU 58964 [0000e654]
[000002c4] Cell_1: last sector of this cell 59082 [0000e6ca]




I change the above entry to 1442, then I save the VTS file, and make sure I do a Get VTS sectors.

This works perfectly in PowerDVD and jumps straight to that sector when I start the movie from the menu.

However, if I open the files then with DVDshrink or similar it always messes up, and shows the main movie as EXTRAS and the menus as the main MOVIE!

Also if I burn those files, without runing them through DVDshrink etc, (and the movie is obviously small enough to do this) the DVD player will show a blank screen, with no running clock showing, for the same length of time, as the amount I've skipped! As soon as that period of time as elapsed the movie continues as if nothing had happened. But until then it looks as if the dvd has died.

There's something simple I'm doing wrong! Can you please tell me what it is!?

I've backed up about 70+ DVD, and never had a coaster, but this would be the icing on the cake for me.

Hope someone can help!

mpucoder
14th January 2004, 04:35
DVDShrink, and others, get confused by messing with just one pointer, and not correcting others. In this case you have an inconsistancy, the PGC claims cell 1 starts in the middle of a cell according to the cell map (VTS_C_ADT), and scanning the vob will disclose the inconsistancy as well (the VOBUs of a cell form a double-linked chain).

But why bother? DVDShrink can cut the intro off for you.

pilotsnipes
14th January 2004, 18:08
Originally posted by mpucoder

But why bother? DVDShrink can cut the intro off for you.

Well not unless I go into re-author mode, and lose the menus. That's why I was looking for a solution.

Thanks though!

pilotsnipes
16th January 2004, 20:51
If anyone is interested, I found the solution here:

http://forum.doom9.org/showthread.php?s=&postid=429755#post429755