[Eric Pautsch]

You cannot replicate anymore. But the larger question would be…Why would you want to? HD DVD is a dead format…if you know this, why go that route? On top of that, you would need the correct CMF image for replication. Only Sonic’s and Toshiba’s authoring tool did that.

[Eric Pautsch]

Sure…but the original question was “does the spec support 30P”? No it doesn’t but the outcome is the same. Best thread in months!! 🙂

[Eric Pautsch]

you might check out this product:

https://www.sonic.com/products/Professional/scenaristpublisher/quicklook.aspx

I know its really expensive and Sonic support is God awful

[Eric Pautsch]

Bingo! There’s the answer.

So to make it clear:

1. DVD is an interlaced format only
2. All MPEG 2 streams are stamped 29.97; 23.98 with PD flags=29.97
3. Progressive-source video (such as from film) is usually encoded on DVD as interlaced field pairs that can be reinterleaved by a progressive player to recreate the original progressive video.

This is different from being interlaced footage being de-interlaced.

So the 30p is actually encoded 29.97 interlaced field matching pairs

Do we agree on this? 🙂 I would love to put this away for good. lol

[Eric Pautsch]

Here’s good thread to read:

https://forums.creativecow.net/thread/8/1040702#1040702

The thing to remember is DVD is 20 yr old technology. Progressive video was not a thought in the late eighties. A DVD compliant NTSC MPEG-2 video file must be stamped with a frame rate of 29.97 fps. There is only place for one frame rate code in the MPEG-2 headers, so you cannot stamp it with two different rates. This is regardless whether the original movie comes from film or not. There is no doubt about that. It is just a matter of fact.

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[Eric Pautsch]

The only problem Enrique is that the spec only supports 29.97 interlaced and 23.98 with PD flags – the spec is very clear on this. So there’s a missing piece of the puzzle here.

My guess is that the “30p” is actually interlaced just that each frame has NO temporal differences. A “faux” 30p if you will. I’ll have to post this on the Tully List to see what the rest of the DVD world thinks.

I’ve never worked with 30p material before myself – find all this very confusing 🙂

[Eric Pautsch]

Never heard of 29.97 progressive on DVD. Its either 29.97 interlaced or 23.98p with pulldown flags. Not sure how you are encoding but its definitely not a 30p MPEG2 stream.

EDIT: Correction! So its still an interlaced picture, but there is no time difference between fields?

[Eric Pautsch]

Here are the specs:

NTSC (NTSC Film)

Video:
Up to 9.8 Mbps* (9800 kbps*) MPEG2 video
Up to 1.856 Mbps (1856 kbps) MPEG1 video
720 x 480 pixels MPEG2 (Called Full-D1)
704 x 480 pixels MPEG2
352 x 480 pixels MPEG2 (Called Half-D1, same as the CVD Standard)
352 x 240 pixels MPEG2
352 x 240 pixels MPEG1 (Same as the VCD Standard)
29,97 fps*
23,976 fps with 3:2 pulldown = 29,97 playback fps (NTSC Film, this is only supported by MPEG2 video)
16:9 Anamorphic (only supported by 720×480)

Its either 29.97 or 23.98 with 3:2 PD – There are no other frame rates in DVD.

[Eric Pautsch]

1. DVD is programming and yes…like all programming, there are bugs to fix 🙂 No one without an advanced understanding of DVD and the 3 tools listed would be able to author a title like that. Unless it is super basic which it doesn’t look it is. You would hire a DVD expert for this kind of work…someone who just does DVD. If you were to go the Flash route…then you hire a flash designer.

2. “DVD”, “Immediately Run” and “computers” can’t live within the same sentence 🙂

[Eric Pautsch]

Yeah…you would bring the 6 audio tracks into any number of Dolby 5.1 encoders and encode. You will then have a ac3 5.1 file (not a quicktime) which you plug into your Blu Ray authoring tool.