DGIndex: AC3 out of sync after PGC1

[Grafdude]

I have a pal movie which has 2 PGC's and created a D2V project which gave me the AC3 track. Now the audio is perfectly sync, except when the 2 PGC kicks in, a small delay occurs. I think that DGIndex is improperly setting the the delay for the 2nd PGC.

How can I prevent this delay from occuring?

[len0x]

afaik you can't process more than one PGC with DGIndex at all...

[neuron2]

That's right.

Just out of curiosity, what are these multiple PGCs, and why would you process them together? Are they different angles? If so, what is the sense of processing them together?

Me = PGC noob. :)

[len0x]

PGC (program chains) usually contains a logical unit of video: main movie, an episode of TV show, one extra material etc. So IMHO it doesn't really makes sense to process them together.

P.S. Each PGC can consist of several angles.

[neuron2]

OK, then perhaps Grafdude can tell us why he is doing that.

[Grafdude]

It is a movie, it has 2 PGC's, that's why I have to put them together.

I figured a way I could do this, I ripped both PGCs with dvd decrypter, then I made a d2v project for each of them, encoded the 2 PGCs and then author it into 1 movie (since I dont know how to make PGC's). So I end up with a perfect audio sync, well thats my prediction.

[mimungr]

I use VobEdit to join them before running DGIndex. I'm sure there's an easier way, but it seems to work for me. At least I've never had sync issues.

[len0x]

Now I remember in which cases joining PGCs is useful: movies like LOTR that are on two DVDs... VobEdit indeed can be a solution. Encoding both parts separately will mean that they will have different quality.

[Grafdude]

Encoding both parts separately will mean that they will have different quality.

Indeed,

I joined both PGCs with vobedit, like mimungr mentionned and then created a d2v project file with the audio track. The audio has a perfect sync throughout the entire movie.

[neuron2]

Great! So the heat is off to implement multi-PGC support.

[gizmau]

i had difficulties with interlaced extras some time ago, which run into desync due to different pgcs. maybe dgindex dropped or duplicated one field at he border of the pgc, maybe there was a change in field order or something else. i could check the dvd again, but it takes a week or so.