Another DVD Re-authoring Question

[videopoo]

Hi Folks

I have someone who wants VTS 1 replaced with a newer, better encode. This title has 1 video stream and 2 AC3 audio streams. It has 29 VTS and was done in DVDSP. The abstraction layer is way to large for me to go through it and change commands. Is there a set of tools I could use to mux the new video and audio streams, then insert this into the old PGC while keeping the programming intact?

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[manono]

Hi-

If I'm understanding you correctly, I think VobBlanker will do the job.

Open the original DVD, highlight the VTS you want to replace so it appears in the lower screen, highlight it in the lower screen, and then hit the "Replace" button to the right. Scroll to the replacing video, give it a destination, and "Process". This will keep the original menus and anything else in that DVD.

You can only replace with an authored DVD. You seem to be saying that the better version is still in elementary stream form. So, author it with Muxman or somesuch before doing the replace in VobBlanker.

[Bjs]

Vobblanker ... but more details required about "2 AC3 audio streams" .

Mediainfo may help ... or open the ifo with the same id in ifoedit and look at audio info to tell what they are .

[videopoo]

... but more details required about "2 AC3 audio streams"

The title has a director's commentary and a 5.1 audio stream. I was going to do a build in DVDSP or Muxman then use that to insert into the PGC that contains the film. I could easily reauthor this whole title by wiping out the Abstraction layer and start over from scratch but the client budget is limited and was looking for a work around.

The only issue I have is I don't now how reliable or spec compliant Muxman or Vob Blanker is. I've always used DVDAfterEdit for this kind of stuff since its the only tool I know which has gone through the DVD forum's testing policies. Several thousand units will be replicated from the job..

[Bjs]

Problem is getting the audio to be an exact match in time length of video ... if it isn't , don't even start .

5.1 is something that may prove a problem , unless you have in you possession a product cable of creating it such as sony vegas .

But you could use besweet to separate it into separate streams , and follow this : https://www.videohelp.com/forum/archive/5-1-wav-or-6-mono-wavs-to-5-1-ac3-conversion-t299673.html

Your first problem after its been pulled apart into separate channels is to identify its true length .

Syncview is one of easier tools to correct slight differences between the video and audio stream so they match .
Then follow the guide above .

Ifoedit will reauthor all back together , dont forget to use "get vts sectors" after , and before saving the two newer ifos that appear in the upper window (the two lowest) ... correct video and audio stream info to indicate proper information .

Once done , its move over to vobblanker and replace the original vst with the new .
Play test after to ensure everything is fine prior to burning ... imgburn .

Yes ... not everything is good with muxman ... I wouldn't trust it ... as for the 2 bugs I found ... there mine till I find a use for them .

Vobblanker is fine ... but remember , if the audio dosent match precisely the video stream it is intended for , you'll know about it later .

[videopoo]

Thanks

They've provided me the new .m2v and I have already demux the 5.1 and 2.0 AC3s. I just need to mux then and bring it into the PGC which has the old film. I'll give VobBlanker a try to see if I can make this a fast fix to fit their budget.

[manono]

The only issue I have is I don't now how reliable or spec compliant Muxman or Vob Blanker is.

Probably as much or more so than whatever it is you're using now.

[videopoo]

Well...maybe.

The point is that I know, after years of use, that AfterEdit works great and is the only tool (that I know of) that has been through the Forum's testing procedures. Wasn't sure how Vob Blanker or Muxman is when business reputations or money is involved - Haven't had the need to use them that much.

I'm glad I ask because I won't be touching Muxman again based on BJs reply.

[manono]

Don't believe everything Bjs says. I'd like to know the "bugs" he found. Or more to the point, maybe he could report them to mpucoder. The author says it produces output better and more compliant than does even Scenarist, and I have good reason to believe him. Muxman has its quirks, sure, but nothing serious, and although I use IFOEdit for authoring from time to time, and for other things, Muxman is the better authoring app.