safe to delete duplicate vob id?

[brynolf]

After dif4u startup with the movie tomb raider 2 (R2 PAL) I get the message that "duplicate vob ids are not selected, might require manual use with scenarist" (or something like that). Is it safe to go on with the big3 guide with these detected duplicates unselected without losing playability or something else scary?

[Matthew]

What this means is that certain VOBIDs (or maybe just one) are reused in the different PGCs of a VTS. You don't want to encode the same material twice so they are unselected.

Now, it shouldn't be a problem with DoItFast4U, but when it comes to authoring, ReAuthorist may not replicate the structure properly (I've never used it so not sure). That's what the warning is telling you.

In doom9's big 3 guide there's a link to a page describing when and when not to demux by VOBID, read that and have a look inside your IFO using IFOEdit, with any luck it'll help you understand the DVD structure better.

In any event you'll always know whether ReAuthorist has done its job properly, because the IFO produced by Scenarist should have the same structure as the original...just compare the 2 side by side using IFOEdit. If they differ then manual intervention in Scenarist is required.

[brynolf]

Thanks.

I'll see if it works later today. Hopefully the CCE night work wasn't a complete waste of time :)

But it seems strange to me that a DVD has like 4 duplicte vobids and some of them where really strange, like two seconds of black screen with no audio. Could it be that paramount are trying to mess things up?

[Matthew]

I backed up some episodic discs recently and each episode had a tiny VOBID at the end (half-sec chapter)...AFAIK it was just there to allow skipping to the end of each episode. Maybe a similar thing here. Or maybe Paramount is indeed just be trying to to make things tricky. I know that with Minority report (R4) for example, VOBID 1 is junk (part of film reproduced) and is not even referenced in the IFO. It's just there to bloat the DVD and cause a bit of irritation to some people.