DVD Vob/Cell ID and chapters relation

[Dark-Cracker]

Hi,

i am asking myself a weird question.

the vob Id represent a group of one or more cell.
and i am asking does the chapters in the dvd movies ALWAYS represent the list of Vob-Id ?

it's bit strange but if i get the vobid list does this can give me the chapter list ?

i hope someone could answer :)

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[Doom9]

does the chapters in the dvd movies ALWAYS represent the list of Vob-Id ?No. Take seamless branching titles for instance.. one scene available in two versions has two vob IDs, one for each version.

[Dark-Cracker]

>seamless branching titles
my english is not very good, i suppose you speak about the multi-angle title ?

if it's about the different angle, is agree with you the vob id number will be different.
But there will still correspond (in the timestamp) at the chapter list ?

for exemple you will have :

exemple : Angle 1, one cell by vobId, and the lenght beetween [] =>
VobId 1 : [ 00:00:10 ]
VobId 2 : [ 00:03:00 ] (Angle 1)
VobId 4 : [ 00:01:00 ]
VobId 5 ....

Angle 2 =>
VobId 1 : [ 00:00:10 ]
VobId 3 : [ 00:03:00 ] (Angle 2)
VobId 4 : [ 00:01:00 ]
VobId 5 ....

in these 2 case you will have a chapter list (in pseudo ogg format because i don't have the right syntax near me) with duration (sum of the chapter length) :

With the angle 1 we will have :

<CHAPTER01>
<NAME>VobId 1</NAME>
<DURATION>00:00:00</DURATION>
</CHAPTER01>
<CHAPTER02>
<NAME>VobId 2</NAME>
<DURATION>00:00:10</DURATION>
</CHAPTER02>
<CHAPTER03>
<NAME>VobId 4</NAME>
<DURATION>00:03:10</DURATION>
</CHAPTER03>
<CHAPTER04>
<NAME>VobId 5</NAME>
<DURATION>00:04:10</DURATION>
</CHAPTER04>

and with Angle 2 , only one chapter name will change but will still have a *correct* (mean a correct timestamp) chapter list.

what i don't really understand it's the difference between chapters, and vobId ?

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