Re: Tracking bug

[eblanca76]

> Well, this dvd doesn't run smoothly on a stand alone dvd player, the video stops on some frames for
> a couple of seconds; this is very annoying.
> So, where is the issue? Is the dvd content encoded the right way? Is dvdauthor working properly?

After some trials, I can assure the dvd content is coded the right way.
The problem raised on a few clips with absolutely no sound, for which I used a single channel, 32
kbps AC3 (in order to waste the minimum amount of space) and this is the issue. It seems that a
similar audio is not welcome on some standalone players and they get into troubles. After raising
this bitrate to 128 kbps the video clip became smooth again.
So, there is a lower bound for AC3 data rate in DVDs, isn't it?

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[Ben Hutchings-3]

On Thu, 2009-09-17 at 17:44 +0200, eblanca76 wrote:

> > Well, this dvd doesn't run smoothly on a stand alone dvd player, the video stops on some frames for
> > a couple of seconds; this is very annoying.
> > So, where is the issue? Is the dvd content encoded the right way? Is dvdauthor working properly?
>
> After some trials, I can assure the dvd content is coded the right way.
> The problem raised on a few clips with absolutely no sound, for which I used a single channel, 32
> kbps AC3 (in order to waste the minimum amount of space) and this is the issue. It seems that a
> similar audio is not welcome on some standalone players and they get into troubles. After raising
> this bitrate to 128 kbps the video clip became smooth again.
> So, there is a lower bound for AC3 data rate in DVDs, isn't it?

In the past I tried using 64 kbps MP2 audio and it was reported that
this didn't work on a Playstation 2.  Raising it to 128 kbps worked.  I
didn't look further for a required minimum.

Ben.

--
Ben Hutchings
Beware of bugs in the above code;
I have only proved it correct, not tried it. - Donald Knuth


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