No video in VTS title.

[Senior]

I have this project with 6 VTS. #2 and 3 are first play. #4 main feature,#5,6 preview.
#1 VTS has a few menu PGC and program PGC with no video in it. Menu PGCs have background and buttons pointing to #4 VTS (Main movie, Chapters, Special features).
Debug show no problem, exported DVD will play in Power DVD player, but in Nero will play only first play(#2,3) and stop.
Than I use DVDRebuilder to compress the file.
Once done it does not play in any software player. Compressed file imported to DvdReMake show that #1VTS is not there.
As soon as I point to an empty program PGC in #1VTS and export, compress, everything is fine.
I wonder why Debug does not show any error?

[toaddub]

Not exactly sure what's going on. Try process the source with Rebuilder first and see how it goes.

What do you mean VTS1 is not there? A VTS must have at least one PGC/program/cell to be valid. Any red highlight errors shown before and after Rebuilder is processed? A couple of screenshots would help.

[Senior]

VTS1 has a PGC cell with no video. There is no red text in Remake. When I play this export from Remake it play in Power DVD, not in Nero.
After Rebuilder it will play in neither one.
VTS1 (about 27Mb) is not there and other VTS are renumbered in sequence. Than if I import this back to Remake there is a red text in WMG where original commands went to VTS1.
The only difference between working and not working is that I insert command for WMG title pointing to title in VTS1 and from Post of VTS1 Program PGC I go to original set of commands in WMG Menu PGC that go to VTS1 root menu PGC.
For not working version I just went from WMG menu PGC to VTS1 root menu PGC.
I will try to make new compression tonight and send some screen shots for you to see.
When it happened first time I went to previous version of Rebuilder thinking that is a problem, same thing happened.

[toaddub]

What version of Rebuilder are you using? What you're saying is that RB is modifying some commands linking to VTS1, which I don't think it's supposed to do that. About the missing video, could be that it is unreferenced that RB does not include it. Still, ReMake should've taken care of that already as all unreferenced V/CID are not included in the output.

Perhaps you could post the IFOs all zipped for speculation: original source, DvdReMake output, and RB output.

[Senior]

OK
Here are some pictures.
The problem is in WMG. I found it by accident. As soon as there is a WMG Title for VTS1 everything is OK (works) no additional commands needed.
Otherwise you get what you see in picture 2 and 3.
Rebuilder is latest version 1.25.0 Pro

[toaddub]

In Screen 2, is this the source imported into ReMake or ReMake output reimported into ReMake?

Screen 1 is from RB output (from unprocessed source) import into ReMake?

[Senior]

Screen #2 is the original file stripped of unwanted parts and #3 is RB output imported to RM from this screen.
Screen #1 is RB output imported into RM. This file is made from uncompressed file same as screen #2, only difference is that for screen #1, file was made from #2 with WMG Title6 in it, no other commands or anything else was changed.

[toaddub]

So Screen #2 is the source that already does not have a VMG Title for VTS1? If so, it is the bad authoring part. RM does not know what VMG Title # to give for VTS1. Please double-check the VIDEO_TS.IFO before you import into RM.

[Senior]

Scree #2 is my original. I took out WMG for VTS1, because there was an empty title (no video) so I thought that it does not need WMG. I guess I was wrong.
But what I still do not get why Debug did not worn about that?

[toaddub]

IC, you did not say that you removed the VMG title in the beginning. A VTS must have a VMG title to be compliant even if there's no actual video. A blank cell is enough for it.

The debugger did not warn about it probably because it hasn't traced through VTS1 yet.

[Senior]

Thanks for info. I learned few new things again.
Concerning Debuger. It did go through VTS1, because ,like I mentioned at the beginning, there are Menu PGC which lead to VTS4.
One is main menu, chapters, specials and so on. Debuger go through them and make proper connection even if WMG Title6 is not there.

[toaddub]

It has to go through the title domain (VTS/Program Chains/PGC), not the menu domain (VTS/Menus/PGC). As a test, change the first line in pre-command in First Play to jump to VMG Title 6 (VTS1). Debugger should error out because there's no VMG Title 6.

Perhaps Dimad can add a compliance check during export phase that if any VTS does not have a VMG Title that it gives an error message alert.

[Senior]

In my project I did not use WMG Title. I just went from First Play to WMG/Menu/PGC and from there Jump/VTS1/Root PGC. From that one used Link to other PGC in that VTS. From VTS1/PGC-Screen button (play movie and so on), back to WMG/PGC and from there to WMG/Title for corresponding VTS.
It works as long as there is WMG-Title for VTS1.
Yes it would be good if there is something in Debug to warn about VTS not having WMG Title.

[toaddub]

Would you mind load up the original IFOs with the shrunk menus without audio. I'll have better idea of what you're seeing.

[DimadSoft]

It is required that a at least one Title from VTS is listed in VMG (if navigation goes through this VTS somehow). DRMP should probably check for this and highlight such VTS with error.

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