Re: [Dvdauthor-users] WARN: Skipping sector, waiting for first VOBU...

[Erik S. <er...@ol...>]

On Mon, 2005-02-21 at 09:17 -0600, GI wrote:

> Actually, I've had trouble with the vobs that vamps produce. Especially
> if you strip out one or more audio / subpicture tracks. Sometimes
> dvdauthor refuses to create the DVD (with a friendly "SCR moves
> backwards" message). Usually I atleast get a bunch of warnings
> (something about an open GOP).

That last is very normal and to be expected.

Most of the time I have no errors at all. Some dvd's seem to have
multiangles
or a timestamp reset somewhere in the middle. These dvd's need to have
the
respective chapter remultiplexed and then they're fine (this is where my
palette patch comes in...). Recently I had two dvd's with a large number
of these errors and I couldn't get it right at all. I am very curious
what
was the cause. I don't think it's vamps' fault though.

> There are patches to dvdauthor that 'ignore' the SCR moves backwards
> error. This is a BAD idea. DON'T USE THEM. Scott pointed out that it's
> not always going to work (dig out his message from the dvdauthor-developer list).

I've tried it and indeed it doesn't work.

> I found that SCR error or not, the vobs from vamps sometimes cause jerky
> playback (maybe this has to do with that GOP warning). Infact, on one of
> the DVD's I backed up recently (using vamps), the playback was so jerky
> that it wasn't worth it (my original scratched DVD was better).

NTSC? Here in "PAL" land, no problems at all.

> The standard responce given by dvdauthor (and wise people on this list)
> is to remplex your input. tccat + tcextract + mplex make a nice
> combination for this. If you don't know how, I've a script somewhere I
> can dig out ... :)

Tccat has it's own issues (see the mailing list)...

I like vamps because it can selectively extract sound tracks and
subtitles.