PgcEdit 8.1 - number of streams

[Syncroniza]

Hi!
I'm getting warning messages with some of my DVDs. I'm no expert in PgcEdit, so perhaps one of you can tell what's the problem/if there is a problem?

The warnings say:
"Verify number of streams (in whole DVD):
There is no subpic stream defined for the Menu domain in the VMGM_MAT table of VMGM. However, as there are non-dummy PGCs in the domain, one subpic must be definded in VMGM_MAT.
Fix the number of subpic streams in VMGM_MAT to 1?"

The warnings occur with DVDs with only 1 movie (in 1 VTS). There is no VMG menu, just VTS menus. I author these DVDs with DVD-Lab Pro. Only the PgcEdit versions 8.0 or higher seem to throw this message. With older versions, I never got such a message (the "fix number of streams"-function at startup is always turned on).

So: Is it possible that DVD-Lab writes some wrong infos here? Or is it false alarm? I just want to be sure what's wrong exactly before I investigate further with DVD-Lab...
Minor note: All DVDs play correctly on a standalone.

[blutach]

Answer yes. :) PgcEdit is doing you a little service.

However, it is puzzling as if there are no VMGM menus, it shouldn't say this (there would need to be video in the VMG domain for this warning to occur).

In any event, it can do no harm.

Regards

[r0lZ]

Blu is right. A non-dummy menu PGC must have a subpic stream, even if it has no button and is therefore not really a menu.

I don't understand why PgcEdit displays this warning. Are you sure that there are no PGCs at all in the VMGM domain, or that all PGCs are dummies?

[Syncroniza]

Hmm... Interesting.
I know that I don't create a VMG menu myself (in such a beforementioned project) - just 1 (or more) VTS menu(s). But after compilation there's not only the VTS_01_0.VOB, but also a VIDEO_TS.VOB. So DVD-Lab Pro seems to create some sort of video within the VMG. I never thought of this as a problem.

I just compiled a tiny test project - with one movie, only one VTS menu and no (real) VMG menu. I made a screenshot from PgcEdit with some infos. Here (http://home.vrweb.de/~data/images/pgcedit_dvdlab.JPG) it is.

If I got you right... according to the specs, all VMG menus must have a subpic stream - even if the menus aren't used at all. But I think it's not a severe problem, right?
Well, I also have to say that I'm using here DVD-Lab Pro v1.6 (for ages now). So, it's not the newest version. I should eventually update...

[r0lZ]

No, it's not a severe problem, don't worry! My "verify streams" function tries to be close to the DVD-Video specs, but IMO no players have problems with that.
(BTW, I've learned this theoretical requirement recently. It's why the warning is not displayed by old versions.)

[Syncroniza]

OK. Thanks for the clarifications!