PDA

View Full Version : Is it true that DVDRB removes layer breaks


eriksen76
6th January 2005, 00:06
Normally I run movies through Ifoedit before using DVDRB so the layer breaks are removed.

But yesterday I did not use Ifoedit, and in the final DVDRB output the layer breaks were gone.

Does DVDRB really do the job?

/Eriksen76

Cwluc
6th January 2005, 21:26
I know this a small stupid question, but I had been using Shrink with NO compression to remove the layer break. How would you do that in IFOEdit (for future reference) ?

EDIT: Sorry I realized I didn't answer your question. I have no idea if this is true or not I been using something else also to remove the layer break. If DVD-RB does it I guess I could skip that step. Anyone else?

The eDealer
6th January 2005, 21:42
You can find it here with the search function:

1. Open the movie's IFO, usually VTS_01_0.IFO, with IFOEdit
2. Note the cell number where the layer break occurs.
3. Note the PGC number, usually PGC_1
4. Expand VTS_PGCITI and select the PGC noted at (3)
5. Scroll down until you find the cell number noted at (2)
6. The very first entry for that cell - cell type -
will have some value other than 8.
7. Double click this line and change the value by adding 8 to whatever's there
now. Thus, if it's 2 make it 10, if it's 0 make it 8.
8. Save the file.
9. You may want to do a Get VTS sectors, too. It isn't strictly necessary, but it does confirm the general integrity of the files.

@eriksen76
I checked my last three backups where i didn't remove the layer break manualy -> no layer break in any backup
Using RB v0.70 and DVD Decypter 3.5.2.0

dannyv
6th January 2005, 21:46
Originally posted by Cwluc
I know this a small stupid question, but I had been using Shrink with NO compression to remove the layer break. How would you do that in IFOEdit (for future reference) ?

EDIT: Sorry I realized I didn't answer your question. I have no idea if this is true or not I been using something else also to remove the layer break. If DVD-RB does it I guess I could skip that step. Anyone else?

I've done lots of movies and its weird. On some of them it removes the layer breaks and on some it don't.

Now before you say anything I do know the difference between dual layerd and single layer DVD's and I do know the dual layer format will have layer breaks.

The eDealer
6th January 2005, 22:00
@dannyv
You use the v0.70 of the RB with the v1.81 of AviSyth ??
Isn't it better to use AviSynth v2.5x ;).

dannyv
6th January 2005, 22:30
Originally posted by The eDealer
@dannyv
You use the v0.70 of the RB with the v1.81 of AviSyth ??
Isn't it better to use AviSynth v2.5x ;).

Oops my tag is wrong it should read avisysth 2.55 dgdecode 1.81.

sweetness
7th January 2005, 05:11
Originally posted by dannyv
I've done lots of movies and its weird. On some of them it removes the layer breaks and on some it don't.
be careful ifoedit doesn't show layer breaks 100% read here (http://forum.doom9.org/showthread.php?s=&threadid=22031)
BTW PGCedit can remove layer breaks easier than ifoedit.
i know this still doesn't answer the question. does dvd-rb remove them?

apfraats
7th January 2005, 10:18
As far as I know RB doesn't remove layer breaks.

The easiest and surest way most people use is a run through DVD SHRINK with compression off, ignoring oversizing warnings and be sure to set te remove layer break option.

Toine.

Bij the way, only double layered discs (on one side) have layer break. On some players you notice a short stop in the movie and sound and then it goes on without any problem.

Some modern players have read ahead memory and do not produce noticable stops.

I know it can be very irritating, cause within the masering process of the DVD they almost never take in the position of the layer break.

So sometimes just in the middle of an action scene,you notice the short stop.

Cause compressed DVD's have no layer break while the have only one layer, the problem never arises there if the source is ok.

Toine.

jdobbs
8th January 2005, 14:11
The problem is that there really is no such thing as a "layer break" except at the physical layer on the DVD. What most people think of as a layer break is the System Clock Reference (SCR) discontinuity that is set at the time the layer break happens. Unfortunately there are lots of other good reasons to have an SCR discontinuity.

DVD-RB looks at the discontinuities, considers them, and if it is obviously related to a layer break -- it removes it. If there is any doubt, however, it remains.

The eDealer
8th January 2005, 16:05
That's new for me but good to know and make sense.
Thanks for the info.

erdoke
10th January 2005, 00:38
Originally posted by apfraats
So sometimes just in the middle of an action scene,you notice the short stop.

Cause compressed DVD's have no layer break while the have only one layer, the problem never arises there if the source is ok.

If you experience a short stop in the middle of an action scene and you're sure it was caused by the layer break than it is a very poorly authored disc.

As for the compressed DVDs not having LB. Well, even DVD9 has not enough capacity to store a DVD resolution movie uncompressed. So movies bigger than 4489 MB will definitely contain Layer break if they were recorded onto a DL disc. ;)