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Layer Break issue-No red flag
Tue, 2007-10-09 16:32 — Enrique
Hi
I got to make new masters of Live Aid DVDs 1 to 4 for the local branch. I've extracted all 4 volumes.
1,2 and 4 went without a hitch, but number 3.....after extraction (using Mac the Ripper, as always), there's no red flag for the layer break (I've already checked, it's a 8.2 GB disc), only the light blue ones right in the middle of a song.
How do I go from here to DDP? DVDAE freezes when I try to format (I assume it's because there's no automatic layer break defined) but it seems like a no-no forcing a layer break manually in the middle of a song...
I've tried opening the original disc VIDEO_TS from DVDAE, and the same thing happens: no red flag.
Thanks in advance and best to all.
Hi Enrique, You're welcome,
Hi Enrique,
You're welcome, glad you got everything working !
Ian
Everything worked ok!
Hey Ian!
Everything worked OK in the end!
For the life of me, I hadn't been able to find "Replace Menu VOB" in the Menus! I already knew about rendering a dummy project to get a VOB, but there were some pieces missing, obviously.
Your "control-click and choose Replace Menu VOB" was the main one (oh, the times I told someone else to RTFM...)
Another thing that contributed to my (?) succesfully completing these project was the thing about copying the PGC commands on a per-PGC basis, as you suggested. There were 10 dummy PGCs there, some with commands, and some of them blank.
I closed and reopened, and bingo! I could put the layer break on a chapter point.
But when I opened the VIDEO_TS folder with the Apple DVD Player, it didn't work, so I opened my work copy and the original one again, did a Copy PGC commands as text on the original, then did a Paste on my work copy and all was well.
Thanks again for the invaluable help!
Hi Enrique,As I say, you
Hi Enrique,
As I say, you need to use the Replace Menu VOB function. But first you need to check that you have only dummy PGCs in the VMG. If not you will need to find somewhere else to add the video - let us know.
Next you will need to create a "dummy" VOB of suitable size. It doesn't matter what the footage is, since no-one will ever see it, but it's probably safest to make it black. So for example if you need to shift the layer-break about 5 mins early, create a new video asset the same length, with the same ( CBR ) data-rate as the other footage. Put this into VTS 1 /Track 1 in your authoring app and build it to a temporary folder.
Now duplicate your project, open the copy in DVDAE, and select the VMG Menus node. Control-click and choose Replace Menu VOB, then browse and select the "dummy" VTS VOB file which you built in the temporary folder. Make sure the option to Import Commands With VOB is unticked and click OK. The new dummy VOB will overwrite the old VMG VOB, so now you have added video to the VMG.
However you will have lost the VMG's PGC structure and commands when this happened, so open the original project again, take a look at the PGCs in the VMG, and edit the PGC structure of the new one 'till it looks the same. If the original was authored with Spruce or DVDSP, this probably just means deleting whatever is there and then adding eight or so dummy PGCs.
Save, and then copy and paste all the commands from the original to the new project ( if there are any ! ). It's probably safest to do this on a per-PGC basis.
You're done ! Save and re-open, and hopefully now you will be able to select a valid chapter as the layer-break.
Let us know how you get on,
Cheers,
Ian
PS. For this to work, you'll have to check there is enough space to fit a suitable dummy VOB to move the break point far enough.
How do I insert video in the VMG?
Larry
How do I go about your suggestion? How do I insert video in the VMG? I have some space left, so this could work.
TIA and best to you
Larry's suggestion
I'll try Larry's suggestion and see how it goes. Never encountered a PTP disc in the past! Never would have figured it out on my own.
Thanks, guys.
Hi Enrique, Since the disc
Hi Enrique,
Since the disc only contains 8.2 GB at this point, I like Larry's suggestion:
One alternative is to add video to layer 0, probably in the VMG, so that DVDAE can find a legal OTP cell. But if the disc is nearly full that may not be possible.
You can use the information from the blue arrow cells to figure out how much is needed, then create a suitable "dummy" VOB and use Replace Menu VOB to put it in the VMG, re-creating the structure and pasting the original commands back in. All the later chapter points will "ripple" along and give you a legal location.
Ian
It may require PTP Layer Break
Hi Enrique,
DVDAE does not do Parallel Track layer breaks (PTP), only Outside Track (OTP). That means that layer 0 must be larger than layer 1, whereas PTP can have layer 0 smaller than layer 1. So it is likely that your disc was done initially with PTP.
HDAfterEdit does PTP, but the pre-mastering isn't quite finished yet. I can send you an alpha copy to see if it finds the PTP layer break. (That part is working). But the upgrade price is now $449.
One alternative is to add video to layer 0, probably in the VMG, so that DVDAE can find a legal OTP cell. But if the disc is nearly full that may not be possible.
Another is to create a new cell in the middle of your song. (Not aesthetically pleasing).
If you open the project in DVDAE and look at the cells near where the middle, there is information in the right pane about how far you are from the layer break area.
Regards,
Larry
I tried your suggestion but...
I tried Michael's suggestion, inserted the layer break in the middle of a song, saved, closed the project, quit, re-opened, but the options are still the same, can't use a chapter point as a layer break still.
I'm kind of desperate for suggestions...
Cheers!
I've seen something similar...
I've encountered this sort of behavior before when a project coming out of Spuce had no LB set. You might try putting the LB anywhere in the light blue and then see if DVDSP re-sets its notion of where legal LBs can go. Possibly you'll need to save, quit and then re-open the project.
BTW: where DVDSP set the break for the other projects by default may have no relationship to where the break was set on the actual disc. It frequently resets my chosen break when I bring a project in from Spruce and I have to set it back to where I actually want it.
Good Luck!
Michael
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