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DVD9 opposite/parallel track path

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Jale
DVD9 opposite/parallel track path
by
on Jun 24, 2005 at 10:39:51 pm

I have a DVD+R DL with the information on both layers.

The information on layer 0 goes only up to 47mm radius and freezes up. My understanig is that information on the layer0 should go thru the end of the layer 0(about 59mm radius)
On some players would play fine. The data on layer 1 starts on 47 mm - this is opposite track path.
I need more information haw to fix this problem.
Maybe if re-authoring in the parallel track path would fix this.
Any help would be appreciated.
Thanks


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Alex Alexzander
Re: DVD9 opposite/parallel track path
on Jun 25, 2005 at 9:15:48 pm

The information does not need to go to the end of the DVD+R DL. Layer 0 simply must be greater than layer 1. If you have a project that is say 5.6 GBs in total for example, you can set the layer-break so that it does not go to the edge of the DVD and still create a situation where layer 0 is larger than layer 1.

You are experiencing a freeze because the layer-break is likely not properly setup.

Here is a good How To article that will help you better understand the layer-break issue.

http://www.gearsoftware.com/support/documentation/dvdvideobreakpoint.cfm

In section three, there is a section I would revise a bit.

See this image from Gear's site:

http://www.gearsoftware.com/support/documentation/images/LayerBreakCell.JPG

STC discontinuity is not the same things as unselecting the cell for seamless playback. If you look at the cell number on their example, it says the cell value is 10.

http://www.editorsbin.com/posts/pgcedit/cell_type_flags.gif

Here is a Cell value table which shows that Seamless Joint holds a value of 8. Seamless Joint is seamless playback. At the layer break, this needs to be removed. If you have a cell value of 10, and you remove the seamless playback, you will be left with a value of 2.

In IFOEdit, double-click on the cell value and change it from 10 to 2, and that will remove the seamless joint.

http://www.editorsbin.com/posts/ifoedit/ifo_edit_seamless_cell.gif

See this image above.

Here my cell value is 2, and I get that from having the STC set to on, and the Seamless playback linked in PCI set to No, or Off. The only bit that is on in this situation is STC, so the value is 2.

Everything else in the How To is fine. I would say look for a cell value of 2, or change a value of 8 or 10 into a value of 2 to setup the condition correctly.

I'll work with Gear later to make sure they change this little oversight.

-Alex


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